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Bird Identification Q&A
Pallid Swift? UK
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<blockquote data-quote="JANJ" data-source="post: 1249060" data-attributes="member: 20722"><p>Could these two by KMO be some of them?</p><p></p><p><a href="http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11872" target="_blank">http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11872</a></p><p></p><p><a href="http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11936" target="_blank">http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11936</a></p><p></p><p>According to Chantler & Driessens (Swifts) pekinensis breeds i Iran - possibly eastern Iraq and eastwards to Mongolia and N.China.</p><p>They also mention that the two forms are clinal, with intergrdes appearing where they meet. </p><p>Apparently breeders in eastern Turky are paler than Common and therefore are likely to be pekinensis.</p><p>Note in the second image the darker back contrasting with the paler wings and large pale throat patch, as recoeded by KMO. </p><p></p><p>The suggestion would be a very difficult ssp to identify amongst hords of Common Swifts.</p><p></p><p>How would it be positively identified from, lets say this one:</p><p></p><p><a href="http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11268" target="_blank">http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11268</a></p><p></p><p>if there where only one image taken, give and take variation in throat patch size?</p><p></p><p>JanJ</p></blockquote><p></p>
[QUOTE="JANJ, post: 1249060, member: 20722"] Could these two by KMO be some of them? [url]http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11872[/url] [url]http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11936[/url] According to Chantler & Driessens (Swifts) pekinensis breeds i Iran - possibly eastern Iraq and eastwards to Mongolia and N.China. They also mention that the two forms are clinal, with intergrdes appearing where they meet. Apparently breeders in eastern Turky are paler than Common and therefore are likely to be pekinensis. Note in the second image the darker back contrasting with the paler wings and large pale throat patch, as recoeded by KMO. The suggestion would be a very difficult ssp to identify amongst hords of Common Swifts. How would it be positively identified from, lets say this one: [url]http://www.netfugl.dk/pictures.php?id=showpicture&picture_id=11268[/url] if there where only one image taken, give and take variation in throat patch size? JanJ [/QUOTE]
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Bird Identification Q&A
Pallid Swift? UK
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