{"id":8168,"date":"2026-05-03T18:13:48","date_gmt":"2026-05-03T16:13:48","guid":{"rendered":"https:\/\/sortiesnature78.com\/?p=8168"},"modified":"2026-05-04T07:22:36","modified_gmt":"2026-05-04T05:22:36","slug":"preparation-dune-sortie-guide-de-parc","status":"publish","type":"post","link":"https:\/\/sortiesnature78.com\/?p=8168","title":{"rendered":"Pr\u00e9paration d&rsquo;une sortie Guide de Parc"},"content":{"rendered":"\n<figure class=\"wp-block-pullquote\"><blockquote><p><strong>Ce que m\u2019apportent mes rep\u00e9rages<\/strong><\/p><\/blockquote><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>La reconnaissance terrain<\/strong><\/h3>\n\n\n\n<p>Cela fait plus de 8 ans que je randonne sur les 55 communes du <a href=\"https:\/\/www.parc-naturel-chevreuse.fr\/un-territoire-preserve\" target=\"_blank\" rel=\"noreferrer noopener nofollow\"><strong>Parc naturel r\u00e9gional de la Haute Vall\u00e9e de Chevreuse<\/strong><\/a> en tant que Guide de Parc et je ne connaissais pas encore la commune de Fontenay-L\u00e8s-Briis&nbsp;!<\/p>\n\n\n\n<p>Pour illustrer la pr\u00e9paration id\u00e9ale d\u2019une sortie Guide de parc, je vous propose donc de plonger dans l\u2019exemple concret du domaine de Soucy, que j\u2019ai explor\u00e9 en hiver 2026. J\u2019ai en effet besoin de d\u00e9couvrir les lieux en amont, avec un parcours qui peut aller au-del\u00e0 des 3 km, distance souvent propos\u00e9e lors des balades guid\u00e9es.<\/p>\n\n\n\n<p>Sous une pluie fine, j\u2019ai arpent\u00e9 ce parc presque d\u00e9sert, le 2 janvier, d\u00e9couvrant une mosa\u00efque d\u2019\u00e9cosyst\u00e8mes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des zones humides : un \u00e9tang, le canal Saint-Didier, affluent de la Charmoise, deux mares g\u00e9om\u00e9triques (mare rectangle et mare carr\u00e9e\u00a0;-)) sublim\u00e9es par des haies s\u00e8ches ou pless\u00e9es.<\/li>\n\n\n\n<li>une prairie prometteuse : la \u00ab clairi\u00e8re aux papillons \u00bb, pour observer les l\u00e9pidopt\u00e8res au printemps.<\/li>\n\n\n\n<li>des espaces forestiers en lisi\u00e8re, avec des arbres \u00e0 terre et des esp\u00e8ces embl\u00e9matiques (charme, ch\u00eane, \u00e9rable champ\u00eatre, tremble\u2026), mais aussi des g\u00e9ants de parcs arbor\u00e9s (platanes, c\u00e8dres, s\u00e9quoias, ifs\u2026).<\/li>\n\n\n\n<li>un verger avec diff\u00e9rentes vari\u00e9t\u00e9s de pommiers, en fleurs au printemps..<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_mare-carree.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"8169\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_mare-carree-768x1024.jpg\" alt=\"\" class=\"wp-image-8169\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_mare-carree-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_mare-carree-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_mare-carree-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_mare-carree.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><figcaption class=\"wp-element-caption\">Mare carr\u00e9e le 2 janvier 2026<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_mare-carree.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"8171\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_mare-carree-768x1024.jpg\" alt=\"\" class=\"wp-image-8171\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_mare-carree-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_mare-carree-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_mare-carree-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_mare-carree.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><figcaption class=\"wp-element-caption\">Mare carr\u00e9e le 26 avril 2026<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>Apr\u00e8s cette premi\u00e8re immersion, j\u2019\u00e9change avec les diff\u00e9rentes missions du parc (environnement, parfois patrimoine\u2026) et fouille les archives d\u00e9partementales, les sites de la communaut\u00e9 d\u2019agglom\u00e9ration&#8230; Je d\u00e9cide de proposer une date printani\u00e8re et avec le PNR, nous fixons le samedi 9 mai 2026 apr\u00e8s-midi. Une deuxi\u00e8me reconnaissance, \u00e0 deux semaines de la sortie, me permet alors de finaliser le parcours et les th\u00e9matiques \u00e0 partager avec le public, d&rsquo;immortaliser quelques esp\u00e8ces animales rencontr\u00e9es lors de ce rep\u00e9rage.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8170\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie-1024x768.jpg\" alt=\"\" class=\"wp-image-8170\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102_prairie.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Prairie le 2 janvier 2026<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8172\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie-1024x768.jpg\" alt=\"\" class=\"wp-image-8172\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_prairie.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Prairie le 26 avril 2026<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>Cette sortie au domaine de Soucy sera inclusive : elle est ouverte au public sourd et malentendant gr\u00e2ce \u00e0 la pr\u00e9sence d&rsquo;une interpr\u00e8te en langue des signes fran\u00e7ais (LSF), une volont\u00e9 du parc de faire d\u00e9couvrir son territoire au plus grand nombre. Voici une vid\u00e9o expliquant ce type de sortie : <a href=\"https:\/\/www.parc-naturel-chevreuse.fr\/sorties-tout-public-avec-interprete-en-langue-des-signes-francaise\">https:\/\/www.parc-naturel-chevreuse.fr\/sorties-tout-public-avec-interprete-en-langue-des-signes-francaise<\/a><\/p>\n\n\n\n<p>Je pr\u00e9pare donc pour l\u2019interpr\u00e8te LSF, une trame souvent plus synth\u00e9tique que cet article et reprenant les points cl\u00e9s que j\u2019aborderai avec le public sourd et entendant. Cela permet \u00e0 l\u2019interpr\u00e8te de s\u2019approprier des termes scientifiques que j\u2019utiliserai comme par exemple <em>\u00ab les oiseaux cavernicoles \u00bb<\/em>, <em>\u00ab les sacs vocaux des grenouilles\u00bb<\/em> ou <em>\u00ab les chenilles gr\u00e9gaires se nourrissant du Fusain d\u2019Europe<\/em>\u00ab\u00a0, et de trouver les signes les plus appropri\u00e9s pour \u00eatre compr\u00e9hensibles du public sourd.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.parc-naturel-chevreuse.fr\/sorties-tout-public-avec-interprete-en-langue-des-signes-francaise\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"8174\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf-1024x576.png\" alt=\"\" class=\"wp-image-8174\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf-1024x576.png 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf-300x169.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf-768x432.png 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf-1536x864.png 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf-533x300.png 533w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/2026-lsf.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Le domaine de Soucy, un lieu charg\u00e9 d\u2019histoire<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. Fontenay-l\u00e8s-Briis en chiffres<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"991\" height=\"370\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/superficie-fontenay.png\" alt=\"\" class=\"wp-image-8180\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/superficie-fontenay.png 991w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/superficie-fontenay-300x112.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/superficie-fontenay-768x287.png 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/superficie-fontenay-600x224.png 600w\" sizes=\"auto, (max-width: 991px) 100vw, 991px\" \/><figcaption class=\"wp-element-caption\">Extrait de la monographie communale : <a href=\"https:\/\/archives.essonne.fr\/ark:\/28047\/b5x1wnt8q6h7\">https:\/\/archives.essonne.fr\/ark:\/28047\/b5x1wnt8q6h7<\/a><\/figcaption><\/figure>\n\n\n\n<p>La commune compte aujourd\u2019hui 2 350 habitants sur 9,72 km\u00b2, \u00e0 59 m d\u2019altitude. En 2017, son territoire se r\u00e9partissait ainsi :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>83,95 % : espaces agricoles, forestiers et naturels<\/li>\n\n\n\n<li>7,2 % : espaces ouverts artificialis\u00e9s<\/li>\n\n\n\n<li>8,84 % : espaces construits artificialis\u00e9s<\/li>\n<\/ul>\n\n\n\n<p>En 1899, 96,19 % du territoire \u00e9tait cultiv\u00e9, pour seulement 546 habitants. Un si\u00e8cle plus tard, la pression urbaine malgr\u00e9 la pr\u00e9servation des espaces naturels a profond\u00e9ment transform\u00e9 le paysage.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy.png\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"445\" data-id=\"8176\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy-1024x445.png\" alt=\"\" class=\"wp-image-8176\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy-1024x445.png 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy-300x130.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy-768x334.png 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy-1536x668.png 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy-600x261.png 600w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/CP-chateausoucy.png 1815w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud.png\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"445\" data-id=\"8177\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud-1024x445.png\" alt=\"\" class=\"wp-image-8177\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud-1024x445.png 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud-300x130.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud-768x334.png 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud-1536x668.png 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud-600x261.png 600w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/ancien-chateau-facadesud.png 1815w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. L\u2019histoire mouvement\u00e9e du domaine<\/strong><\/h4>\n\n\n\n<p>Le domaine de Soucy, 33 hectares (dont la majorit\u00e9 class\u00e9e en Espace Naturel Sensible), porte les traces d\u2019un pass\u00e9 riche :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>XVIIe si\u00e8cle : Domaine seigneurial, d\u00e9truit au XIXe si\u00e8cle, puis reconstruit par M. Mignon.<\/li>\n\n\n\n<li>1905 : Rachat par Ferdinand Ferdinand-Dreyfus. <\/li>\n\n\n\n<li>Premi\u00e8re Guerre mondiale : Charles, son fils,  est fait prisonnier en Allemagne, revient \u00e0 la fin de la guerre et cr\u00e9e en 1919 la ferme d\u2019apprentissage agricole de Bel-Air. Voici un article du Parisien retra\u00e7ant son histoire : <a href=\"https:\/\/www.leparisien.fr\/essonne-91\/essonne-il-y-a-100-ans-il-creait-l-une-des-premieres-fermes-d-apprentissages-de-france-27-09-2019-8161578.php\">https:\/\/www.leparisien.fr\/essonne-91\/essonne-il-y-a-100-ans-il-creait-l-une-des-premieres-fermes-d-apprentissages-de-france-27-09-2019-8161578.php<\/a><\/li>\n\n\n\n<li>Seconde Guerre mondiale : D\u00e9port\u00e9 \u00e0 Auschwitz, il y meurt. Un ancien \u00e9l\u00e8ve, qui l&rsquo;assistait dans la gestion de la ferme, reprend sa direction. Le domaine est acquis par la Chambre d\u2019agriculture en 1958.<\/li>\n\n\n\n<li>1968 : Ras\u00e9, il ne reste que la chapelle Saint-\u00c9loi, les communs et le parc. <\/li>\n\n\n\n<li>Depuis 1996, le Domaine de Soucy est class\u00e9 en Espace naturel sensible (ENS). <\/li>\n\n\n\n<li>La Communaut\u00e9 de Communes du Pays de Limours a acquis le domaine en 2000. Aujourd\u2019hui, les communs abritent un centre de loisirs, la chapelle une salle d\u2019activit\u00e9s, et les pavillons d\u2019entr\u00e9e des locaux pour la Communaut\u00e9 de Communes. Le parc, lui, est libre d\u2019acc\u00e8s et regorge d\u2019informations pour les visiteurs : <a href=\"https:\/\/www.cc-paysdelimours.fr\/environnement-domaine-de-soucy\" target=\"_blank\" rel=\"noreferrer noopener\">en savoir plus<\/a>.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"932\" height=\"582\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/charles-ferdinand-dreyfyus-ferme.jpg\" alt=\"\" class=\"wp-image-8178\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/charles-ferdinand-dreyfyus-ferme.jpg 932w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/charles-ferdinand-dreyfyus-ferme-300x187.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/charles-ferdinand-dreyfyus-ferme-768x480.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/charles-ferdinand-dreyfyus-ferme-480x300.jpg 480w\" sizes=\"auto, (max-width: 932px) 100vw, 932px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/www.leparisien.fr\/essonne-91\/essonne-il-y-a-100-ans-il-creait-l-une-des-premieres-fermes-d-apprentissages-de-france-27-09-2019-8161578.php\">https:\/\/www.leparisien.fr\/essonne-91\/essonne-il-y-a-100-ans-il-creait-l-une-des-premieres-fermes-d-apprentissages-de-france-27-09-2019-8161578.php<\/a><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"755\" height=\"538\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/photo-ancien-chateau.png\" alt=\"\" class=\"wp-image-8181\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/photo-ancien-chateau.png 755w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/photo-ancien-chateau-300x214.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/photo-ancien-chateau-421x300.png 421w\" sizes=\"auto, (max-width: 755px) 100vw, 755px\" \/><\/figure>\n\n\n\n<p><em>Petite anecdote<\/em> : Le nom <em>\u00ab Soucy \u00bb<\/em> viendrait d\u2019une source abondante et fra\u00eeche, comme l\u2019indique un des panneaux du parc.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. Biodiversit\u00e9 local<\/strong>e<\/h4>\n\n\n\n<p>Les inventaires (2000, 2008, 2014) ont recens\u00e9 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>277 esp\u00e8ces floristiques et 52 esp\u00e8ces de champignons, dont deux patrimoniales : l\u2019Ache faux-cresson (<em>Apium nodiflorum<\/em>) et la Cardamine impatiente (<em>Cardamine impatiens<\/em>).<\/li>\n\n\n\n<li>163 esp\u00e8ces animales : 102 oiseaux, 26 papillons, 15 odonates, 11 mammif\u00e8res, 6 amphibiens et 3 reptiles.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"824\" height=\"652\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/extrait-plan-gestion-ENS2-1.png\" alt=\"\" class=\"wp-image-8230\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/extrait-plan-gestion-ENS2-1.png 824w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/extrait-plan-gestion-ENS2-1-300x237.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/extrait-plan-gestion-ENS2-1-768x608.png 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/extrait-plan-gestion-ENS2-1-379x300.png 379w\" sizes=\"auto, (max-width: 824px) 100vw, 824px\" \/><\/figure>\n\n\n\n<p><em>Source : Plan de gestion ENS 2014<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Le parcours en 11 \u00e9tapes cl\u00e9s<\/strong><\/h3>\n\n\n\n<p>Voici les th\u00e9matiques que j\u2019aborderai lors de la sortie, avec des anecdotes et des supports visuels pour mieux illustrer mon discours aupr\u00e8s du public.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. Le c\u00e8dre du Liban : un hommage historique<\/strong><\/h4>\n\n\n\n<p>Plant\u00e9 en comm\u00e9moration du centenaire de la ferme d\u2019apprentissage agricole de Bel-Air (1919-2019), cet arbre majestueux rappelle l\u2019h\u00e9ritage de Charles Ferdinand Dreyfus.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102-cedre-768x1024.jpg\" alt=\"\" class=\"wp-image-8182\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102-cedre-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102-cedre-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102-cedre-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260102-cedre.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. Le platane-harpe<\/strong><\/h4>\n\n\n\n<p>Arr\u00eat devant un arbre que je baptise <em>\u00ab platane-harpe \u00bb<\/em> en r\u00e9f\u00e9rence au magazine n\u00b088 de <em>La Hulotte<\/em> (\u00ab Petits myst\u00e8res des grands bois \u00bb). L\u2019occasion de sortir ce magazine culte et d\u2019explorer les hypoth\u00e8ses sur la formation de cet <em>\u00ab instrument v\u00e9g\u00e9tal \u00bb<\/em>. Nous verrons sur place quelle r\u00e9ponse est la plus appropri\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"8185\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_platane-harpe-768x1024.jpg\" alt=\"\" class=\"wp-image-8185\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_platane-harpe-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_platane-harpe-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_platane-harpe-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_platane-harpe.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"677\" height=\"1024\" data-id=\"8184\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/arbre-harpe-677x1024.jpg\" alt=\"\" class=\"wp-image-8184\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/arbre-harpe-677x1024.jpg 677w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/arbre-harpe-198x300.jpg 198w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/arbre-harpe-768x1162.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/arbre-harpe-1015x1536.jpg 1015w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/arbre-harpe.jpg 1354w\" sizes=\"auto, (max-width: 677px) 100vw, 677px\" \/><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. Le bassin versant de la R\u00e9marde<\/strong><\/h4>\n\n\n\n<p>Le canal Saint-Didier a \u00e9t\u00e9 creus\u00e9 sur le trajet du ru qui conduit l&rsquo;eau depuis la source du hameau de Soucy plus au nord jusqu&rsquo;au grand \u00e9tang. Il rejoint ensuite la Charmoise, affluent de la R\u00e9marde, elle-m\u00eame affluent de l\u2019Orge (et donc de la Seine). Le bassin versant de la R\u00e9marde, sur la carte ci-dessous (280 km\u00b2) s\u2019\u00e9tend sur 36,3 km et deux d\u00e9partements (Essonne, Yvelines).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"542\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/perimetre_imagefull.png\" alt=\"\" class=\"wp-image-8186\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/perimetre_imagefull.png 770w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/perimetre_imagefull-300x211.png 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/perimetre_imagefull-768x541.png 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/perimetre_imagefull-426x300.png 426w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\" \/><\/figure>\n\n\n\n<p><br><em>Carte : Extrait du PPRi (Plan de Pr\u00e9vention du Risque Inondation) en cours d\u2019\u00e9laboration (avril 2026).<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4. L\u2019Hyponomeute du fusain<\/strong><\/h4>\n\n\n\n<p>Recherche puis d\u00e9couverte des chenilles blanches \u00e0 points noirs de l\u2019Hyponomeute du fusain. Les larves construisent des abris en soie. Leur plante h\u00f4te est le Fusain d\u2019Europe, dont elles mangent les feuilles. L&rsquo;humain, lui, utilise cet arbuste pour fabriquer des crayons de dessin !<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_hyponomeute-768x1024.jpg\" alt=\"\" class=\"wp-image-8187\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_hyponomeute-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_hyponomeute-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_hyponomeute-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_hyponomeute.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>5. La haie s\u00e8che<\/strong><\/h4>\n\n\n\n<p>Le Parc Naturel R\u00e9gional organise des chantiers avec les \u00e9tudiants pour fabriquer des haies s\u00e8ches \u00e0 partir des branchages coup\u00e9s en bordure de chemins. Une technique \u00e0 la fois esth\u00e9tique et \u00e9cologique, puisqu\u2019elle est utile \u00e0 de nombreux animaux, notamment les H\u00e9rissons d\u2019Europe, qui peuvent y trouver des endroits o\u00f9 hiberner.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_haie-seche-1024x768.jpg\" alt=\"\" class=\"wp-image-8189\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_haie-seche-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_haie-seche-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_haie-seche-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_haie-seche-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_haie-seche.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>6. L&rsquo;if des amoureux<\/strong><\/h4>\n\n\n\n<p>Je pourrai \u00e9voquer l&rsquo;if, ses parties toxiques mais \u00e9galement ses arilles dont les oiseaux se d\u00e9lectent. Je n&rsquo;ai pour l&rsquo;instant pas trouv\u00e9 beaucoup de choses \u00e0 raconter alors nous imaginerons ce qui est derri\u00e8re son nom. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_if-des-amoureux-768x1024.jpg\" alt=\"\" class=\"wp-image-8190\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_if-des-amoureux-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_if-des-amoureux-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_if-des-amoureux-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_if-des-amoureux.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p>C&rsquo;est ici que je mets le lien vers un carnet con\u00e7u par la Communaut\u00e9 de Communes du Pays de Limours au sujet d&rsquo;une balade familiale dans le domaine de Soucy : <a href=\"https:\/\/www.cc-paysdelimours.fr\/files\/ccpl-2014\/environnement\/Site-internet-2016\/Guide-de-Visite.pdf\">https:\/\/www.cc-paysdelimours.fr\/files\/ccpl-2014\/environnement\/Site-internet-2016\/Guide-de-Visite.pdf<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>7. Ortie dio\u00efque, Ortie blanche et Ortie puante : toutes comestibles !<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ortie dio\u00efque : la classique, qui pique.<\/li>\n\n\n\n<li>Ortie blanche : \u00e9galement nomm\u00e9e le lamier blanc.<\/li>\n\n\n\n<li>Ortie puante (ou <em>\u00ab herbe aux trois ar\u00f4mes \u00bb<\/em>) : une r\u00e9pugnance olfactive mais une surprise gustative, car elle a le go\u00fbt des c\u00e8pes une fois cuite.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-6 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" data-id=\"8191\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_ortie-puante.jpg\" alt=\"\" class=\"wp-image-8191\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_ortie-puante.jpg 900w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_ortie-puante-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_ortie-puante-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_ortie-puante-400x300.jpg 400w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Ortie puante ou encore \u00c9piaire des bois<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"8192\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_orties-768x1024.jpg\" alt=\"\" class=\"wp-image-8192\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_orties-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_orties-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_orties-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426_orties.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\">Ortie dio\u00efque et Lamier blanc<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>8. Les mares rectangulaire et carr\u00e9e<\/strong><\/h4>\n\n\n\n<p>C&rsquo;est autour de la mare carr\u00e9e que l&rsquo;on peut observer des plessages de noisetiers (haies vivantes r\u00e9alis\u00e9es avec des taillis), qui sont le fruit de chantiers \u00e9coles men\u00e9s par le PNR avec les \u00e9tudiants. Le plessage est une technique traditionnelle pour cr\u00e9er des haies sans fil barbel\u00e9 ni grillage.<\/p>\n\n\n\n<p><em>Partenariat<\/em> : Le PNR est conventionn\u00e9 avec le domaine de Soucy pour des actions de sensibilisation, d\u2019accueil du public et d\u2019\u00e9ducation \u00e0 l\u2019environnement (verger, panneaux p\u00e9dagogiques, animations avec le centre de loisirs\u2026).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>9. Smart\u2019Flore : \u00e0 la d\u00e9couverte des plantes locales<\/strong><\/h4>\n\n\n\n<p>Identification interactive des esp\u00e8ces avec l\u2019appli Smart\u2019Flore.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>10. La prairie aux papillons<\/strong><\/h4>\n\n\n\n<p>La derni\u00e8re culture en 2002 dans cette parcelle \u00e9tait du ma\u00efs. Transform\u00e9e en prairie naturelle de fauche pour l\u2019ENS, elle a \u00e9t\u00e9 sem\u00e9e en 2003 par les \u00e9l\u00e8ves de CM2 de la commune. Aujourd\u2019hui, deux fauches annuelles (juin et septembre) pr\u00e9servent sa biodiversit\u00e9. Voici quelques papillons photographi\u00e9s le 26 avril : lesquels verra-t-on lors de la sortie du 9 mai ?<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-7 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"8194\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun-768x1024.jpg\" alt=\"\" class=\"wp-image-8194\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><figcaption class=\"wp-element-caption\">Cuivr\u00e9 commun<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Argus-commun.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" data-id=\"8193\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Argus-commun.jpg\" alt=\"\" class=\"wp-image-8193\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Argus-commun.jpg 800w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Argus-commun-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Argus-commun-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Argus-commun-400x300.jpg 400w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\">Azur\u00e9 commun<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" data-id=\"8197\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon-1024x769.jpg\" alt=\"\" class=\"wp-image-8197\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon-1024x769.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Machaon.jpg 1199w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Machaon<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Melitee.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" data-id=\"8195\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Melitee.jpg\" alt=\"\" class=\"wp-image-8195\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Melitee.jpg 800w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Melitee-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Melitee-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Melitee-400x300.jpg 400w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\">M\u00e9lit\u00e9e du plantain (il me semble bien)<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Tircis.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"834\" height=\"603\" data-id=\"8196\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Tircis.jpg\" alt=\"\" class=\"wp-image-8196\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Tircis.jpg 834w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Tircis-300x217.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Tircis-768x555.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Tircis-415x300.jpg 415w\" sizes=\"auto, (max-width: 834px) 100vw, 834px\" \/><\/a><figcaption class=\"wp-element-caption\">Tircis<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8198\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable-1024x768.jpg\" alt=\"\" class=\"wp-image-8198\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable-1536x1152.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Robert-le-diable.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Robert-le-diable<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>11. Le grand \u00e9tang : un \u00e9cosyst\u00e8me artificiel<\/strong><\/h4>\n\n\n\n<p>Cr\u00e9\u00e9 par le creusement du sol et la cr\u00e9ation d\u2019une digue, cet \u00e9tang d&rsquo;environ 60 cm de profondeur abrite une faune et une flore adapt\u00e9es aux milieux aquatiques.<\/p>\n\n\n\n<p>Voici les oiseaux et grenouilles qui chantaient autour de cet \u00e9tang le 26 avril, \u00e0 l&rsquo;exception de la Cordulie bronz\u00e9e, cette libellule que je n&rsquo;entendais pas.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped is-style-rectangular wp-block-gallery-8 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cordulie-bronzee.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" data-id=\"8199\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cordulie-bronzee.jpg\" alt=\"\" class=\"wp-image-8199\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cordulie-bronzee.jpg 800w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cordulie-bronzee-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cordulie-bronzee-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cordulie-bronzee-400x300.jpg 400w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\">Cordulie bronz\u00e9e<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Fauvette-a-tete-noire.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"800\" data-id=\"8200\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Fauvette-a-tete-noire.jpg\" alt=\"\" class=\"wp-image-8200\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Fauvette-a-tete-noire.jpg 600w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Fauvette-a-tete-noire-225x300.jpg 225w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><figcaption class=\"wp-element-caption\">Fauvette \u00e0 t\u00eate noire<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8203\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte-1024x768.jpg\" alt=\"\" class=\"wp-image-8203\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte-1536x1153.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Grenouille-verte.jpg 1599w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Grenouille verte<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Linotte-melodieuse.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" data-id=\"8202\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Linotte-melodieuse.jpg\" alt=\"\" class=\"wp-image-8202\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Linotte-melodieuse.jpg 800w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Linotte-melodieuse-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Linotte-melodieuse-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Linotte-melodieuse-400x300.jpg 400w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\">Linotte m\u00e9lodieuse<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" data-id=\"8201\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin.jpg\" alt=\"\" class=\"wp-image-8201\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin.jpg 800w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin-400x300.jpg 400w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8208\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2-1024x768.jpg\" alt=\"\" class=\"wp-image-8208\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2-1536x1152.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin2.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8209\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5-1024x768.jpg\" alt=\"\" class=\"wp-image-8209\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5-1536x1152.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin5.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8205\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6-1024x768.jpg\" alt=\"\" class=\"wp-image-8205\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6-1536x1152.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin6.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"8206\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3-768x1024.jpg\" alt=\"\" class=\"wp-image-8206\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3-768x1024.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3-225x300.jpg 225w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3-1152x1536.jpg 1152w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3-630x840.jpg 630w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3-960x1280.jpg 960w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin3.jpg 1200w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"767\" data-id=\"8207\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7-1024x767.jpg\" alt=\"\" class=\"wp-image-8207\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7-1024x767.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7-768x575.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7-1536x1150.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7-401x300.jpg 401w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin7.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4.jpg\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"8204\" src=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4-1024x768.jpg\" alt=\"\" class=\"wp-image-8204\" srcset=\"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4-1024x768.jpg 1024w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4-300x225.jpg 300w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4-768x576.jpg 768w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4-1536x1152.jpg 1536w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4-400x300.jpg 400w, https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Pigeon-colombin4.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Pigeon colombin<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>Ce deuxi\u00e8me rep\u00e9rage me donne h\u00e2te de revenir dans ce parc et de partager ce que j&rsquo;ai pu observer. Les Pigeons colombins, ces oiseaux cavernicoles, seront-ils bien pr\u00e9sents pr\u00e8s de la cavit\u00e9 qu&rsquo;ils ont choisi pour nicher ?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Ouvrir les yeux sur les merveilles de notre territoire<\/strong><\/h3>\n\n\n\n<p>Pr\u00e9parer une sortie Guide de parc, cela prend du temps et c\u2019est bien plus que tracer un itin\u00e9raire de randonn\u00e9e. C\u2019est \u00e9galement tenter de mieux conna\u00eetre l\u2019histoire du site, les personnes et institutions actrices qui font vivre le territoire. Ces rep\u00e9rages me permettent de conna\u00eetre puis de vous partager quelques d\u00e9tails des \u00eatres vivants dont l\u2019existence est enti\u00e8rement li\u00e9e \u00e0 ces \u00e9cosyst\u00e8mes vari\u00e9s, riches, prot\u00e9g\u00e9s et partag\u00e9s. C\u2019est aussi anticiper les questions du public, adapter son discours, et rendre accessible la connaissance \u00e0 toustes.<\/p>\n\n\n\n<p>Chaque rep\u00e9rage et chaque \u00e9change avec les acteurs locaux enrichissent mon r\u00e9cit et me permettent de proposer des sorties qui j\u2019esp\u00e8re sont uniques et qui vous feront aimer et prot\u00e9ger ces espaces naturels remarquables.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ce que m\u2019apportent mes rep\u00e9rages La reconnaissance terrain Cela fait plus de 8 ans que je randonne sur les 55 communes du Parc naturel r\u00e9gional de la Haute Vall\u00e9e de Chevreuse en tant que Guide de Parc et je ne connaissais pas encore la commune de Fontenay-L\u00e8s-Briis&nbsp;! Pour illustrer la pr\u00e9paration id\u00e9ale d\u2019une sortie Guide&#8230; <\/p>\n<div class=\"link-more\"><a href=\"https:\/\/sortiesnature78.com\/?p=8168\">En savoir plus<\/a><\/div>\n","protected":false},"author":1,"featured_media":8221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[31,2,1,11,13,14,20,23,27],"tags":[93,64,68,74],"class_list":["post-8168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amphibiens","category-animaux","category-blog","category-ens","category-guide-de-parc","category-insectes","category-oiseaux","category-prochaines-sorties","category-sorties-nature","tag-lsf","tag-parcnaturelregionaldechevreuse","tag-pnrchevreuse","tag-sortie-nature"],"jetpack_featured_media_url":"https:\/\/sortiesnature78.com\/wp-content\/uploads\/2026\/05\/20260426-Cuivre-commun3.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/posts\/8168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8168"}],"version-history":[{"count":16,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/posts\/8168\/revisions"}],"predecessor-version":[{"id":8233,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/posts\/8168\/revisions\/8233"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=\/wp\/v2\/media\/8221"}],"wp:attachment":[{"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sortiesnature78.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}