{"id":2440,"date":"2010-09-27T22:17:16","date_gmt":"2010-09-28T04:17:16","guid":{"rendered":"http:\/\/earbirding.com\/blog\/?p=2440"},"modified":"2010-09-27T22:17:16","modified_gmt":"2010-09-28T04:17:16","slug":"got-grosbeaks","status":"publish","type":"post","link":"http:\/\/earbirding.com\/blog\/archives\/2440","title":{"rendered":"Got Grosbeaks?"},"content":{"rendered":"<figure id=\"attachment_2441\" aria-describedby=\"caption-attachment-2441\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"http:\/\/picasaweb.google.com\/lh\/photo\/JCAYpvIxBekxW7H3xXtFyw\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2441\" title=\"EVGRfeeder\" src=\"http:\/\/earbirding.com\/blog\/wp-content\/uploads\/2010\/09\/EVGRfeeder-300x247.jpg\" alt=\"\" width=\"300\" height=\"247\" srcset=\"http:\/\/earbirding.com\/blog\/wp-content\/uploads\/2010\/09\/EVGRfeeder-300x247.jpg 300w, http:\/\/earbirding.com\/blog\/wp-content\/uploads\/2010\/09\/EVGRfeeder.jpg 576w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-2441\" class=\"wp-caption-text\">If this is a common sight at your feeders, Aaron Haiman wants to hear from you. Ontario, Canada, 11\/11\/2007. Photo by Mike Mills (Creative Commons 3.0).<\/figcaption><\/figure>\n<p>Aaron Haiman is a Master&#8217;s student in Tom Hahn&#8217;s lab at the University of California, Davis.\u00a0 For his thesis research, Aaron is following up on the <a title=\"http:\/\/www.jstor.org\/pss\/1370527\" href=\"http:\/\/www.jstor.org\/pss\/1370527\" target=\"_blank\">paper that Tom published<\/a> with Kendra Sewall and Rodd Kelsey in 2004, the one that described five <a title=\"http:\/\/earbirding.com\/blog\/archives\/1601\" href=\"http:\/\/earbirding.com\/blog\/archives\/1601\" target=\"_blank\">call types of Evening Grosbeak<\/a>.<\/p>\n<p>As you will recall, Joseph Grinnell in 1917 recognized five subspecies of Evening Grosbeak on the basis of plumage brightness and bill morphology.\u00a0 In 1974, the American Ornithologists&#8217; Union decided that some of these subspecies were not distinctive enough, and so they lumped them into the three subspecies currently recognized.\u00a0 However, the five call variants described by Sewall et al. match up quite well geographically with Grinnell&#8217;s original five subspecies.\u00a0 So Aaron is setting out to determine whether Grinnell&#8217;s original taxonomy should be reinstated.\u00a0 Eventually, he wants to answer lots of interesting questions:<\/p>\n<ul>\n<li>do birds of different call types look any different from one another?<\/li>\n<li>have they diverged genetically?<\/li>\n<li>do other vocalizations vary along with the flight calls?<\/li>\n<li>do they have different habitat requirements?<\/li>\n<li>do they prefer different foods?<\/li>\n<li>do birds of one type respond to the flight calls of other types?<\/li>\n<\/ul>\n<p>In order to answer all these questions, Aaron needs grosbeaks.\u00a0 And a great place to find themis at backyard bird feeders.\u00a0 Aaron has already visited the properties of eight homeowners in three states who reported Evening Grosbeaks at their feeders, and with their generous cooperation, he has set up nets to capture the birds.<\/p>\n<p>Once he captures a grosbeak, Aaron measures it, bands it, takes a sample of its blood, and releases it back into the wild.\u00a0 Of course, he also audio records the bird&#8217;s flight call.\u00a0 On his recent trip to Colorado, Aaron banded 19 Evening Grosbeaks &#8212; which isn&#8217;t a bad haul, but much more data is necessary to unravel the mysteries of the biology of this remarkable nomadic finch.<\/p>\n<p>If Evening Grosbeak is a regular visitor to your backyard, and you are willing to host a banding and recording session, please\u00a0 e-mail Aaron at<a title=\"mailto:anhaiman@ucdavis.edu\" href=\"mailto:anhaiman@ucdavis.edu\" target=\"_blank\"> anhaiman@ucdavis.edu<\/a> describing where you live and how many Evening Grosbeaks are coming to your feeders.\u00a0 So far, Aaron has gotten wonderful support from several generous people willing to open their yards to his research &#8212; and if you&#8217;re willing and able to help, he would love to hear from you.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If Evening Grosbeak is a common sight at your feeders, Aaron Haiman wants to hear from you.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[119,118],"class_list":["post-2440","post","type-post","status-publish","format-standard","hentry","category-news","tag-coccothraustes-vespertinus","tag-evening-grosbeak"],"_links":{"self":[{"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/posts\/2440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/comments?post=2440"}],"version-history":[{"count":2,"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/posts\/2440\/revisions"}],"predecessor-version":[{"id":2443,"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/posts\/2440\/revisions\/2443"}],"wp:attachment":[{"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/media?parent=2440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/categories?post=2440"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/earbirding.com\/blog\/wp-json\/wp\/v2\/tags?post=2440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}