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Bien que des sites de reproduction soient encore fr\u00e9quent\u00e9s, le franchissement des Pyr\u00e9n\u00e9es est observ\u00e9 depuis la derni\u00e8re d\u00e9cade d\u2019ao\u00fbt. Au 11 septembre, 21 oiseaux ont \u00e9t\u00e9 comptabilis\u00e9 au Col d\u2019Organbidexka, dans les Pyr\u00e9n\u00e9es-Atlantiques. Bien que des sites de reproduction soient encore fr\u00e9quent\u00e9s, le franchissement des Pyr\u00e9n\u00e9es est observ\u00e9 depuis la derni\u00e8re d\u00e9cade d\u2019ao\u00fbt. Au 11 septembre, 21 oiseaux ont \u00e9t\u00e9 comptabilis\u00e9 au Col d\u2019Organbidexka, dans les Pyr\u00e9n\u00e9es-Atlantiques. Sur ce col, la date moyenne du passage, calcul\u00e9e sur les 30 derni\u00e8res ann\u00e9es, se situe au 19 septembre. Les […]<\/p>\n","protected":false},"author":3,"featured_media":2865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-autres-informations"],"_links":{"self":[{"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=\/wp\/v2\/posts\/2869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2869"}],"version-history":[{"count":0,"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=\/wp\/v2\/posts\/2869\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=\/wp\/v2\/media\/2865"}],"wp:attachment":[{"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/preprod-cna.lpo.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Sur ce col, la date moyenne du passage, calcul\u00e9e sur les 30 derni\u00e8res ann\u00e9es, se situe au 19 septembre. Les premiers oiseaux sont observ\u00e9s d\u00e9but ao\u00fbt et le passage se poursuit jusqu\u2019\u00e0 fin octobre\/d\u00e9but novembre.
L\u2019an pass\u00e9, en octobre 2011, un ph\u00e9nom\u00e8ne de r\u00e9tro-migration a \u00e9t\u00e9 observ\u00e9 sur plusieurs sites de suivi de la migration (Espagne, France, Italie). Ces observations feront l\u2019objet d\u2019une synth\u00e8se dans un prochain bulletin du r\u00e9seau Aigle bott\u00e9. Un premier \u00e9pisode de ce type avait \u00e9t\u00e9 observ\u00e9 en 2004.
Source : www.migraction.net <\/a>
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