{"id":2804,"date":"2014-08-20T13:04:12","date_gmt":"2014-08-20T18:04:12","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=2804"},"modified":"2014-08-21T15:14:33","modified_gmt":"2014-08-21T20:14:33","slug":"first-flight-why-young-birds-migrate-more-slowly","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/first-flight-why-young-birds-migrate-more-slowly\/","title":{"rendered":"First flight: why young birds migrate more slowly<img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_2805\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/08\/Wood-thrush-2-credit-Kevin-Fraser.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2805\" class=\"size-full wp-image-2805\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/08\/Wood-thrush-2-credit-Kevin-Fraser.jpg\" alt=\"Wood thrushes like this one overwinter in Belize and Costa Rica, and breed in the summer in the US and Canada. New research suggests the young may delay their flights to avoid competing with adults. (Photo credit: Kevin Fraser)\" width=\"300\" height=\"450\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/08\/Wood-thrush-2-credit-Kevin-Fraser.jpg 300w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/08\/Wood-thrush-2-credit-Kevin-Fraser-200x300.jpg 200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-2805\" class=\"wp-caption-text\">Wood thrushes like this one overwinter in Belize and Costa Rica, and breed in the summer in the US and Canada. New research suggests the young may delay their flights to avoid competing with adults. (Photo credit: Kevin Fraser)<\/p><\/div>\n<p dir=\"ltr\"><span style=\"color: #000000;\">A slower migration from overwintering grounds in Belize and Costa Rica to breeding grounds in Canada may help young wood thrushes avoid competition with adults, a new study shows. <\/span><\/p>\n<p dir=\"ltr\"><span style=\"color: #000000;\">Using data from geolocators &#8211; a kind of bird backpack that records location information &#8211; researchers showed that juvenile birds leave almost 2 weeks behind the adults and took about 50 per cent longer to reach their destination. The young birds\u2019 smaller wing size may lead to less efficient flight, requiring more stopovers. <\/span><\/p>\n<p dir=\"ltr\"><span style=\"color: #000000;\">Researchers also suggest that by delaying their arrival until after the best breeding sites have been fought over, the juveniles avoid competing with adults against whom they don\u2019t stand a chance.<\/span><\/p>\n<p><a href=\"http:\/\/www.plosone.org\/article\/info%3Adoi%2F10.1371%2Fjournal.pone.0105605\" target=\"_blank\"><span style=\"text-decoration: underline;\">Original research paper<\/span><\/a>\u00a0published in\u00a0the journal\u00a0<em>PLoS ONE\u00a0<\/em>on\u00a0<strong>August 20, 2014<\/strong>.<\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Names and affiliations of selected\u00a0authors<\/strong><\/em><\/span><\/p>\n<h4 dir=\"ltr\"><span style=\"color: #000000;\">Emily McKinnon, York University,\u00a0Ontario<\/span><\/h4>\n<h4 dir=\"ltr\"><span style=\"color: #000000;\">Kevin Fraser, University of Manitoba, Manitoba<\/span><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>A slower migration from overwintering grounds in Belize and Costa Rica to breeding grounds in Canada may help young wood thrushes avoid competition with adults, a new study shows. Using data from geolocators &#8211; a kind of bird backpack that records location information &#8211; researchers showed that juvenile birds leave almost 2 weeks behind the [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2805,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[25],"tags":[39,114,847,50],"class_list":["post-2804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest","tag-animal-behaviour","tag-birds","tag-manitoba-en","tag-ontario"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/08\/Wood-thrush-2-credit-Kevin-Fraser.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-Je","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=2804"}],"version-history":[{"count":2,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2804\/revisions"}],"predecessor-version":[{"id":2807,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2804\/revisions\/2807"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/2805"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=2804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=2804"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=2804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}