{"id":6346,"date":"2024-08-26T09:08:57","date_gmt":"2024-08-26T07:08:57","guid":{"rendered":"https:\/\/plumalia.eu\/?p=6346"},"modified":"2025-05-30T09:48:10","modified_gmt":"2025-05-30T07:48:10","slug":"balade-dans-la-sabliere-de-mont-saint-guibert-belgique-le-02-juin-2024","status":"publish","type":"post","link":"https:\/\/plumalia.eu\/?p=6346","title":{"rendered":"Balade dans la sabli\u00e8re de Mont-Saint-Guibert (Belgique), le 02 juin 2024."},"content":{"rendered":"\n<p class=\"has-text-align-right\">By Bruno MARCHAL &#8211; Plumalia<br>Textes et photos prot\u00e9g\u00e9s par les l\u00e9gislations en vigueur.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"577\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Hirondelle-de-rivage_12.05.24_3090_MSG_Bruno-Marchal.jpg?resize=800%2C577&#038;ssl=1\" alt=\"\" class=\"wp-image-6350\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Hirondelle-de-rivage_12.05.24_3090_MSG_Bruno-Marchal.jpg?resize=1024%2C739&amp;ssl=1 1024w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Hirondelle-de-rivage_12.05.24_3090_MSG_Bruno-Marchal.jpg?resize=300%2C217&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Hirondelle-de-rivage_12.05.24_3090_MSG_Bruno-Marchal.jpg?resize=768%2C555&amp;ssl=1 768w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Hirondelle-de-rivage_12.05.24_3090_MSG_Bruno-Marchal.jpg?w=1227&amp;ssl=1 1227w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-left\"><br>Un grand merci \u00e0 la direction d\u2019INBW (propri\u00e9taire des lieux) pour leur autorisation \u00e0 cette balade.<br>On peut le dire, la m\u00e9t\u00e9o a \u00e9t\u00e9 pourrie depuis octobre 2023 et les conditions de circulation p\u00e9destre n\u2019\u00e9taient pas id\u00e9ales.<br><br><strong>Nous allons commencer la balade sur un site de plusieurs dizaines d&rsquo;hectares, avec une multitudes de biotopes diff\u00e9rents.<br>C&rsquo;est sa richesse.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6296.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6352\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6296.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6296.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6296.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-left\"><br>La date \u00e9tant fix\u00e9e, presque 20 inscrits dont une famille de 5 personnes et, j\u2019en suis fier, 2 jeunes venus de Flandre.<br><br>La balade commence par l\u2019endroit le plus industrialis\u00e9 du fond de carri\u00e8re, avec les diff\u00e9rents b\u00e2timents des entreprises install\u00e9es.<br>Les contacts avec les oiseaux sont peu nombreux principalement des Corneilles noires et des Choucas des tours. Quelques Pigeons ramiers en vol.<br>Apr\u00e8s ce passage industrialis\u00e9, nous arrivons dans une zone plus verte avec une belle biodiversit\u00e9.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"540\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6298.jpeg?resize=800%2C540&#038;ssl=1\" alt=\"\" class=\"wp-image-6354\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6298.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6298.jpeg?resize=300%2C203&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6298.jpeg?resize=768%2C518&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Les connaissances naturalistes sont mises en commun. Les botanistes s\u2019en donnent \u00e0 c\u0153ur joie. En effet, le fond de la sabli\u00e8re regorge d\u2019esp\u00e8ces v\u00e9g\u00e9tales adapt\u00e9es au sable dont des orchid\u00e9es. Au vu de la m\u00e9t\u00e9o des derniers mois, nous n\u2019en observerons aucune sur le trajet.<br>Tr\u00e8s peu d\u2019insectes. Peu de libellules et nous n\u2019avons pas observ\u00e9 de cicind\u00e8le cette fois-ci, dont voici une photo de 2023 dans cette m\u00eame sabli\u00e8re.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"580\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Cicindele-hybride-Bruno-Marchal-05948.webp?resize=800%2C580&#038;ssl=1\" alt=\"\" class=\"wp-image-6355\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Cicindele-hybride-Bruno-Marchal-05948.webp?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Cicindele-hybride-Bruno-Marchal-05948.webp?resize=300%2C218&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Cicindele-hybride-Bruno-Marchal-05948.webp?resize=768%2C557&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-Hdr-MSG-poisson-03577.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" class=\"wp-image-6356\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-Hdr-MSG-poisson-03577.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-Hdr-MSG-poisson-03577.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-Hdr-MSG-poisson-03577.jpg?resize=768%2C512&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Nous passons par une pi\u00e8ce d\u2019eau g\u00e9n\u00e9ralement tr\u00e8s int\u00e9ressante pour la biodiversit\u00e9, mais la pr\u00e9sence de poisson de grandes tailles, diminue fortement la vie dans, et autour de celle-ci.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6300.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6357\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6300.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6300.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6300.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Arr\u00eat sur une station de fleurs orang\u00e9es qui s\u2019av\u00e8reront \u00eatre des \u00c9pervi\u00e8res orang\u00e9es.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"685\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6249.jpg?resize=800%2C685&#038;ssl=1\" alt=\"\" class=\"wp-image-6358\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6249.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6249.jpg?resize=300%2C257&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6249.jpg?resize=768%2C658&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Voici l\u2019\u00c9pervi\u00e8re orang\u00e9e de plus pr\u00e8s.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6305.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6360\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6305.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6305.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6305.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>La seule petite difficult\u00e9 du jour, une petite c\u00f4te d\u2019une vingtaine de m\u00e8tres \u00e0 franchir.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6311.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6361\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6311.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6311.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6311.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Les sourires restent malgr\u00e9 tout, d\u2019actualit\u00e9&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6312.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6362\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6312.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6312.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6312.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p><br>A la d\u00e9couverte des plantes du site avec ici, les explications sur les onagres et card\u00e8res, tr\u00e8s int\u00e9ressantes pour les oiseaux. Elles produisent une belle quantit\u00e9 de graines qui nourriront les oiseaux en hiver.Ces derniers les diss\u00e9mineront aussi sur l\u2019ensemble du site.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6315.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6365\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6315.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6315.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6315.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Enfin, d\u00e9couverte de la partie de l\u2019exploitation du sable. Les explications sur les deux cat\u00e9gories de sable et sur la couverture argileuse, seront donn\u00e9es en cet endroit. De ce point de vue les couches sont bien visibles ainsi qu\u2019une premi\u00e8re colonie d\u2019Hirondelles de rivage. Cette colonie est seulement visible aux jumelles ou avec une longue vue.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"547\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6318.jpeg?resize=800%2C547&#038;ssl=1\" alt=\"\" class=\"wp-image-6366\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6318.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6318.jpeg?resize=300%2C205&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6318.jpeg?resize=768%2C525&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>C\u2019est toujours une d\u00e9couverte de voir la grandeur et les couleurs du site, qui font sortir des \u00ab&nbsp;Ooooh&nbsp;\u00bb de la bouche des d\u00e9couvreurs.&nbsp;<br>Habituellement, le sable parait plus jaune avec une belle lumi\u00e8re. <br>Le sable \u00e9tait aussi lav\u00e9 par la pluie, de sa couche d\u2019argile, responsable de cette couleur jaune soutenu.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"591\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03640.jpg?resize=800%2C591&#038;ssl=1\" alt=\"\" class=\"wp-image-6368\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03640.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03640.jpg?resize=300%2C222&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03640.jpg?resize=768%2C567&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>L\u2019arriv\u00e9e vers la colonie d\u2019Hirondelles de rivage approche doucement par des chemins pas toujours aim\u00e9s des belles chaussures&#8230;<br>&nbsp;Plusieurs Pluviers petits gravelots ont \u00e9t\u00e9 entendu.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"638\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6283.jpeg?resize=800%2C638&#038;ssl=1\" alt=\"\" class=\"wp-image-6369\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6283.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6283.jpeg?resize=300%2C239&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_6283.jpeg?resize=768%2C612&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>On aper\u00e7oit la colonie d\u2019hirondelles au-dessus des tas de graviers dans la bande sablonneuse. <br>La praticabilit\u00e9 des chemins s\u2019am\u00e9liore&#8230;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6322.jpeg?resize=800%2C600&#038;ssl=1\" alt=\"\" class=\"wp-image-6370\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6322.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6322.jpeg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_6322.jpeg?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Et enfin, le point d\u2019orgue de cette balade&nbsp;: \u00ab&nbsp;La colonie d\u2019Hirondelles de rivage&nbsp;\u00bb.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_DSC03656.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" class=\"wp-image-6372\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_DSC03656.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_DSC03656.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-bruno-Marchal_DSC03656.jpg?resize=768%2C512&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>La colonie a vraiment l\u2019air bien dynamique.<br>Les explications sur les terriers et leurs occupants sont donn\u00e9es. Beaucoup de questions sont pos\u00e9es sur l\u2019esp\u00e8ces et ses habitudes migratoires notamment.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"476\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03656-2.jpg?resize=800%2C476&#038;ssl=1\" alt=\"\" class=\"wp-image-6373\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03656-2.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03656-2.jpg?resize=300%2C179&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Balade-MSG-Bruno-Marchal_DSC03656-2.jpg?resize=768%2C457&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Pour revenir sur la m\u00e9t\u00e9o et en regardant de plus pr\u00e8s sur la m\u00eame photo agrandie, on aper\u00e7oit en deuxi\u00e8me place, une logette peu profonde et plus grande. Ce pourrait \u00eatre la partie du fond de la chambre de nidification. S\u2018il y avait d\u00e9j\u00e0 des \u0153ufs, ceux-ci sont perdus&#8230;<br>En effet, <a href=\"https:\/\/plumalia.eu\/?p=361\" title=\"\">une \u00e9tude a d\u00e9montr\u00e9 en son temps<\/a> que certains terriers \u00e9taient tr\u00e8s peu profonds, environ 20 cm.&nbsp;<br>Avec ces pluies incessantes et au fil du temps, la partie verticale de la falaise s\u2019est \u00e9rod\u00e9e sur plusieurs dizaines de centim\u00e8tres d\u2019\u00e9paisseur ce qui explique la disparition du terrier et des v\u00e9g\u00e9taux de cette chambre-l\u00e0.<br>S&rsquo;il y avait des oeufs ou des jeunes, ceux-ci seront perdus avec leur chute.<br>Pour confirmation, vous apercevez une \u00ab&nbsp;galette&nbsp;\u00bb de v\u00e9g\u00e9taux d\u2019un autre terrier disparu, coinc\u00e9 sur une pr\u00e9dominance caillouteuse, en bas, presqu\u2019au centre du clich\u00e9.<br>Il semble m\u00eame au vu de cette photo, que plusieurs de ces chambres soient presque mise au grand jour.<br><br>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;<br><br><strong>Je remercie vivement les participants pour cette chouette balade avec un tr\u00e8s bon partage des connaissances, mais aussi pour leur gentillesse et leur auto-discipline sur un site parfois pi\u00e8geux.<br><br>Merci aussi \u00e0 la direction du site pour avoir donn\u00e9 leur autorisation pour cet \u00e9v\u00e8nement.<br><br>Merci aussi \u00e0 Claire pour le tableau des esp\u00e8ces rencontr\u00e9es lors de cette balade, voir tableau Excell ci-dessous.<br><br>Merci \u00e0 tous,<\/strong><br><br>Bruno Marchal,<br>Rixensart, le 22 ao\u00fbt 2024.<br><br>Textes et photos prot\u00e9g\u00e9s par<a href=\"https:\/\/plumalia.eu\/?p=90\">&nbsp;les l\u00e9gislations en vigueur<\/a>.<br><br>Mentions l\u00e9gales sur le RGPD,&nbsp;<a href=\"https:\/\/plumalia.eu\/?p=2443\">ici<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"823\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Tableau-Claire-Fery_1_201_a.jpeg?resize=800%2C823&#038;ssl=1\" alt=\"\" class=\"wp-image-6425\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Tableau-Claire-Fery_1_201_a.jpeg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Tableau-Claire-Fery_1_201_a.jpeg?resize=292%2C300&amp;ssl=1 292w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Tableau-Claire-Fery_1_201_a.jpeg?resize=768%2C790&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><br>Merci Claire.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"482\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Libellule-larges-pattes-.jpg?resize=800%2C482&#038;ssl=1\" alt=\"\" class=\"wp-image-6377\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Libellule-larges-pattes-.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Libellule-larges-pattes-.jpg?resize=300%2C181&amp;ssl=1 300w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2024\/08\/Libellule-larges-pattes-.jpg?resize=768%2C463&amp;ssl=1 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p><strong><br><\/strong>Libellule \u00e0 larges pattes \u2013&nbsp;<em>Platycnemis pennipes<\/em>, m\u00e2le de couleur bleut\u00e9e.<br><br><br><\/p>\n\n\n\n<script src=\"http:\/\/www.google-analytics.com\/urchin.js\" type=\"text\/javascript\">\n<\/script>\n<script type=\"text\/javascript\">\n_uacct = 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