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Bird Identification Q&A
Two gulls in Copenhagen
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<blockquote data-quote="lou salomon" data-source="post: 1660979" data-attributes="member: 16268"><p>sure, but they are out there and not only a few.</p><p>currently HG x caspian is one of the most discussed hybrid forms and poland is not too far away from your neck of woods. of course we don't know it for sure but there is enough caspian look to it: structurally with its high breast bend, bump behind legs, slender, elongated appearance, little notching in tertials, thin legs, diffuse outer greater covert pattern with pale band and last but not least an almost perfect caspian bill. </p><p>quite many very dark "caspians" have been obs. and discussed in the european forums this autumn so the question would be - can a pure cachinnans be as dark headed as this in late autumn? i think not. plumagewise the head gives more a michahellis impression with the concentration of dark streaks around eye and ear coverts. </p><p>also, white on tertial edges reaches greater coverts in TT2 (?) - more an argentatus feature but sometimes happens in micha/cachi. </p><p>no visible covert moult (they seems rel. fresh) and what's even more disturbing, scapulars have a ginger tingue and seem to be recently replaced - at least very unusual for a pure caspian. slight notches on tertial edges as well, so</p><p>all in all this is still my impression of the bird: a polish girl. o<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p><a href="http://waarneming.nl/fotonew/2/980692.jpg" target="_blank">http://waarneming.nl/fotonew/2/980692.jpg</a></p><p></p><p><a href="http://waarneming.nl/fotonew/3/969743.jpg" target="_blank">http://waarneming.nl/fotonew/3/969743.jpg</a></p><p><a href="http://waarneming.nl/fotonew/2/969742.jpg" target="_blank">http://waarneming.nl/fotonew/2/969742.jpg</a> (same bird)</p><p></p><p><a href="http://waarneming.nl/fotonew/9/969129.jpg" target="_blank">http://waarneming.nl/fotonew/9/969129.jpg</a></p><p><a href="http://waarneming.nl/fotonew/7/969127.jpg" target="_blank">http://waarneming.nl/fotonew/7/969127.jpg</a> (same)</p><p></p><p><a href="http://waarneming.nl/fotonew/2/952142.jpg" target="_blank">http://waarneming.nl/fotonew/2/952142.jpg</a> (with polish ring, note dark underwing)</p><p></p><p><a href="http://www.artportalen.se/artportalen/gallery/images/swe/birds/2009/large/176212.jpg" target="_blank">http://www.artportalen.se/artportalen/gallery/images/swe/birds/2009/large/176212.jpg</a></p><p><a href="http://www.artportalen.se/artportalen/gallery/images/swe/birds/2009/large/176213.jpg" target="_blank">http://www.artportalen.se/artportalen/gallery/images/swe/birds/2009/large/176213.jpg</a> (same, has been discussed as either a dark pure cachi or possibly with argentatus genes).</p><p></p><p>best,</p></blockquote><p></p>
[QUOTE="lou salomon, post: 1660979, member: 16268"] sure, but they are out there and not only a few. currently HG x caspian is one of the most discussed hybrid forms and poland is not too far away from your neck of woods. of course we don't know it for sure but there is enough caspian look to it: structurally with its high breast bend, bump behind legs, slender, elongated appearance, little notching in tertials, thin legs, diffuse outer greater covert pattern with pale band and last but not least an almost perfect caspian bill. quite many very dark "caspians" have been obs. and discussed in the european forums this autumn so the question would be - can a pure cachinnans be as dark headed as this in late autumn? i think not. plumagewise the head gives more a michahellis impression with the concentration of dark streaks around eye and ear coverts. also, white on tertial edges reaches greater coverts in TT2 (?) - more an argentatus feature but sometimes happens in micha/cachi. no visible covert moult (they seems rel. fresh) and what's even more disturbing, scapulars have a ginger tingue and seem to be recently replaced - at least very unusual for a pure caspian. slight notches on tertial edges as well, so all in all this is still my impression of the bird: a polish girl. o:D [url]http://waarneming.nl/fotonew/2/980692.jpg[/url] [url]http://waarneming.nl/fotonew/3/969743.jpg[/url] [url]http://waarneming.nl/fotonew/2/969742.jpg[/url] (same bird) [url]http://waarneming.nl/fotonew/9/969129.jpg[/url] [url]http://waarneming.nl/fotonew/7/969127.jpg[/url] (same) [url]http://waarneming.nl/fotonew/2/952142.jpg[/url] (with polish ring, note dark underwing) [url]http://www.artportalen.se/artportalen/gallery/images/swe/birds/2009/large/176212.jpg[/url] [url]http://www.artportalen.se/artportalen/gallery/images/swe/birds/2009/large/176213.jpg[/url] (same, has been discussed as either a dark pure cachi or possibly with argentatus genes). best, [/QUOTE]
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Bird Identification Q&A
Two gulls in Copenhagen
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