{"id":3229,"date":"2022-06-19T09:26:28","date_gmt":"2022-06-19T09:26:28","guid":{"rendered":"https:\/\/www.matt27.co.uk\/cascades\/?p=3229"},"modified":"2022-06-20T04:57:24","modified_gmt":"2022-06-20T04:57:24","slug":"faucons","status":"publish","type":"post","link":"https:\/\/www.matt27.co.uk\/cascades\/2022\/06\/19\/faucons\/","title":{"rendered":"Faucons"},"content":{"rendered":"\n<p>La vitesse de 389 km\/h mesur\u00e9e au cours de ce piqu\u00e9 correspond \u00e0 une situation \u201cartificielle\u201d : le faucon \u2013 une femelle \u2013 est l\u00e2ch\u00e9e d\u2019un avion volant \u00e0 4000 m et pique verticalement vers son ma\u00eetre qui lui-m\u00eame tombe en chute libre \u00e0 pr\u00e8s de 200 km\/h. La trajectoire est verticale et la distance de chute suffisamment longue (plus de 1000 m) pour que l efaucon puisse atteindre cette vitesse extr\u00eame. Les calculs et mesures faites en soufflerie montrent qu\u2019un p\u00e8lerin de 1 kg piquant \u00e0 la verticale sur pr\u00e8s de 1500m peut d\u00e9passer 410 km\/h (http:\/\/jeb.biologists.org\/content\/201\/3\/403.full.pdf).<\/p>\n\n\n\n<p>Mais il faut distingueur ces vitesses \u201cexp\u00e9rimentales\u201d des vitesses atteintes en \u201cpiqu\u00e9s de chasse\u201d.<\/p>\n\n\n\n<p>En chasse, les piqu\u00e9s verticaux sont rares et trop courts pour donner au faucon le temps d\u2019atteindre la vitesse maximale dont il est capable. Les attaques de chasse sont g\u00e9n\u00e9ralement entreprises \u00e0 partir de quelques centaines de m\u00e8tres au dessus du sol, les angles que font les piqu\u00e9s terminaux avec l\u2019horizontale sont compris entre 30\u00b0 et 40\u00b0 en moyenne, de sorte que la vitesse \u201cpratique\u201d atteinte d\u00e9passe rarement les 250-300 km\/h.<\/p>\n\n\n\n<p>Quelques liens vers des sites \u00e9ducatifs et de photographies :<\/p>\n\n\n\n<ul><li>http:\/\/www.oiseaux.net\/oiseaux\/faucon.pelerin.html<\/li><li>http:\/\/rapaces.lpo.fr\/faucon-pelerin\/<\/li><li>http:\/\/rjmonneret.free.fr\/Rapaces\/index.htm<\/li><li>Faucon p\u00e8lerin tch\u00e8que : http:\/\/www.birdphoto.cz\/?lang=cz&amp;sc_lang=cz&amp;action=photo&amp;prev_action=select&amp;author_id=&amp;cat_id=1&amp;subcat_id=3&amp;sort_id=45&amp;photo_id=4994&amp;pg=1#browse<\/li><li>Faucon p\u00e8lerin am\u00e9ricain : http:\/\/www.nickdunlop.com<\/li><li>Faucon p\u00e8lerin c\u00f4te ouest USA : http:\/\/www.sharpeyesonline.com\/index.html<\/li><li>Vitesse d\u2019un faucon p\u00e8lerin en piqu\u00e9 vertical : http:\/\/m.youtube.com\/watch?v=1ukf2vntU44&amp;desktop_uri=%2Fwatch%3Fv%3D1ukf2vntU44<\/li><\/ul>\n\n\n\n<ul><li>Comportement d\u2019attaque du faucon p\u00e8lerin : https:\/\/www.youtube.com\/watch?v=legzXQlFNjs<\/li><li>Une attaque de faucon p\u00e8lerin \u00e0 Londres : https:\/\/www.youtube.com\/watch?v=legzXQlF<\/li><\/ul>\n<!--themify_builder_content-->\n<div id=\"themify_builder_content-3229\" data-postid=\"3229\" class=\"themify_builder_content themify_builder_content-3229 themify_builder tf_clear\">\n    <\/div>\n<!--\/themify_builder_content-->\n","protected":false},"excerpt":{"rendered":"<p>La vitesse de 389 km\/h mesur\u00e9e au cours de ce piqu\u00e9 correspond \u00e0 une situation \u201cartificielle\u201d : le faucon \u2013 une femelle \u2013 est l\u00e2ch\u00e9e d\u2019un avion volant \u00e0 4000 m et pique verticalement vers son ma\u00eetre qui lui-m\u00eame tombe en chute libre \u00e0 pr\u00e8s de 200 km\/h. La trajectoire est verticale et la distance&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2954,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":true,"_kad_post_footer":true,"_kad_post_classname":""},"categories":[10],"tags":[],"builder_content":"","_links":{"self":[{"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/posts\/3229"}],"collection":[{"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/comments?post=3229"}],"version-history":[{"count":4,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/posts\/3229\/revisions"}],"predecessor-version":[{"id":3240,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/posts\/3229\/revisions\/3240"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/media\/2954"}],"wp:attachment":[{"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/media?parent=3229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/categories?post=3229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matt27.co.uk\/cascades\/wp-json\/wp\/v2\/tags?post=3229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}