{"id":1213,"date":"2019-06-16T10:31:00","date_gmt":"2019-06-16T08:31:00","guid":{"rendered":"http:\/\/desmarets.be\/wp\/?p=1213"},"modified":"2020-03-12T18:14:10","modified_gmt":"2020-03-12T17:14:10","slug":"comptage-des-hirondelles-de-rivage-dans-les-falaises-de-sable-le-16-juin-2019","status":"publish","type":"post","link":"https:\/\/plumalia.eu\/?p=1213","title":{"rendered":"Comptage des Hirondelles de rivage dans les falaises de sable le 16 juin 2019"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">Une des plus grandes colonies d&rsquo;Hirondelles de rivage belge s&rsquo;observe dans la sabli\u00e8re de Mont-Saint-Guibert et nous allons essayer de compter les terriers occup\u00e9s.<\/h4>\n\n\n<p>Pour pouvoir faire ce comptage, la colonie est photographi\u00e9e par tron\u00e7on. Ces clich\u00e9s seront r\u00e9alis\u00e9s au plus pr\u00e8s de la date de comptage parce que les Hirondelles de rivage (Hdr) peuvent creuser des terriers presque jusqu&rsquo;en fin de nidification.<\/p>\n<p>Voici les photos imprim\u00e9es. Il a cette ann\u00e9e comme depuis 2016, 2 emplacements de colonie dans la sabli\u00e8re. En fin de comptage, nous en avons trouv\u00e9 une troisi\u00e8me constitu\u00e9e d&rsquo;une trentaine de terriers.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1205\" title=\"Hdr MSG 1 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.15_MSG_Hdr_9043.jpg?resize=630%2C472&#038;ssl=1\" alt=\"Hdr MSG 1 Plumalia\" width=\"630\" height=\"472\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.15_MSG_Hdr_9043.jpg?w=630&amp;ssl=1 630w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.15_MSG_Hdr_9043.jpg?resize=300%2C225&amp;ssl=1 300w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Le \u00ab\u00a0jeu\u00a0\u00bb consiste alors \u00e0 observer un ou plusieurs jeunes \u00e0 l&rsquo;entr\u00e9e du terrier, ou une entr\u00e9e ou sortie d&rsquo;un individu. Le terrier est ainsi retrouv\u00e9 et ensuite point\u00e9 sur la photo imprim\u00e9e. Il faut un certain temps d&rsquo;adaptation pour retrouver aux jumelles ou \u00e0 la longue-vue le terrier dont question mais en moins d&rsquo;une heure le comptage est fait<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1206\" title=\"Hdr MSG 2 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_27996.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hdr MSG 2 Plumalia\" width=\"640\" height=\"427\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_27996.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_27996.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Chaque participant se voit octroyer un tron\u00e7on avec un nombre similaire de terriers&#8230; quand c&rsquo;est possible.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1207\" title=\"Hdr MSG 3 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_27998.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hdr MSG 3 Plumalia\" width=\"640\" height=\"427\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_27998.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_27998.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Ici on peut voir la plus grande colonie d\u00e9nomm\u00e9e \u00ab\u00a0AE\u00a0\u00bb pour ancienne exploitation devant les \u00ab\u00a0compteurs\u00a0\u00bb. En fin de saison, elle comptera environ 250 trous.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1208\" title=\"Hdr MSG 4 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28001.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hdr MSG 4 Plumalia\" width=\"640\" height=\"427\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28001.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28001.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Une autre vue avec la sabli\u00e8re en arri\u00e8re plan.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1209\" title=\"Hdr MSG 5 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28003.jpg?resize=480%2C640&#038;ssl=1\" alt=\"Hdr MSG 5 Plumalia\" width=\"480\" height=\"640\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28003.jpg?w=480&amp;ssl=1 480w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28003.jpg?resize=225%2C300&amp;ssl=1 225w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Les artistes \u00e0 l&rsquo;oeuvre.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1210\" title=\"Hdr MSG 6 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28006.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hdr MSG 6 Plumalia\" width=\"640\" height=\"427\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28006.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28006.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Voil\u00e0 que nous commen\u00e7ons la deuxi\u00e8me colonie que l&rsquo;on peut voir en arri\u00e8re plan. Colonie appel\u00e9e \u00ab\u00a0NE\u00a0\u00bb, nouvelle exploitation. En fin de saison, elle comptera environ 160 terriers.<\/p>\n<p>Il faudra trouver un nom pour la troisi\u00e8me si celle-ci reprend vie en 2020&#8230;<\/p>\n<p>L&rsquo;exploitation du sable est bien visible sur cette photo.<\/p>\n<p>La direction et le personnel de la sabli\u00e8re sont tr\u00e8s vigilants d&rsquo;ann\u00e9e en ann\u00e9e pour leurs petites prot\u00e9g\u00e9es. Toute est mis en ouvre pour p\u00e9renniser les falaises occup\u00e9es jusqu&rsquo;en fin septembre. Dates g\u00e9n\u00e9ralement choisies par les Hdr pour leur grand voyage vers l&rsquo;Afrique.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1211\" title=\"Hdr MSG 7 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28007.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hdr MSG 7 Plumalia\" width=\"640\" height=\"427\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28007.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28007.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Au vu de la belle lumi\u00e8re, on profite aussi pour faire quelques clich\u00e9s de nos petites hirondelles.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" aligncenter size-full wp-image-1212\" title=\"Hdr MSG 9 Plumalia\" src=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28013.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hdr MSG 9 Plumalia\" width=\"640\" height=\"427\" align=\"center\" srcset=\"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28013.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28013.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" data-recalc-dims=\"1\" \/><\/p>\n<p>Il \u00e9tait temps au vu de la menace orageuse.<\/p>\n<p>Il sortira du comptage qu&rsquo;environ 35% des terriers sont occup\u00e9s.<\/p>\n<p><strong>Merci \u00e0 Patricia, Jean, Thierry, Bernard et Victor<\/strong> pour la r\u00e9colte de ces pr\u00e9cieuses donn\u00e9es qui permettront d&rsquo;analyser la fluctuation des populations d&rsquo;Hdr au fil des saisons.<\/p>\n<p>RDV probable en 2020&#8230;<\/p>\n<p>Finalement au 25 ao\u00fbt dans la troisi\u00e8me colonie, il y avait 35 terriers et encore 3 hirondelles en vol&#8230; Bon voyage \u00e0 elles.<\/p>\n<p>Rixensart, le 16 juin 2019<br>Bruno Marchal<br>Pr\u00e9sident de Plumalia ASBL<\/p>\n\n\n<script src=\"http:\/\/www.google-analytics.com\/urchin.js\" type=\"text\/javascript\">\n<\/script>\n<script type=\"text\/javascript\">\n_uacct = \"UA-2472264-1\";\nurchinTracker();\n<\/script>\n\n\n\n<p><a href=\"https:\/\/plumalia.eu\/?p=90\">Photos prot\u00e9g\u00e9es par la l\u00e9gislation en vigueur.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une des plus grandes colonies d&rsquo;Hirondelles de rivage belge s&rsquo;observe dans la sabli\u00e8re de Mont-Saint-Guibert et nous allons essayer de compter les terriers occup\u00e9s. Pour pouvoir faire ce comptage, la &#8230;<\/p>\n","protected":false},"author":2,"featured_media":1212,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-1213","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archives-2019"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/plumalia.eu\/wp-content\/uploads\/2019\/11\/jpg_2019.06.14_Hirondelle_de_rivage_600_B_28013.jpg?fit=640%2C427&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/posts\/1213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/plumalia.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1213"}],"version-history":[{"count":8,"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/posts\/1213\/revisions"}],"predecessor-version":[{"id":2020,"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/posts\/1213\/revisions\/2020"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/plumalia.eu\/index.php?rest_route=\/wp\/v2\/media\/1212"}],"wp:attachment":[{"href":"https:\/\/plumalia.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/plumalia.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/plumalia.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}