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yellow wagtail - eastern genes ?

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Old Saturday 30th May 2020, 22:26   #1
Michał Jaro
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yellow wagtail - eastern genes ?

Hello, this is a bird, found in May, south Poland. It was in a flock of grey-headed wagtails (majority of males looks like) . I wonder this white head, breast, whitish underparts, contrasting with the gray top. Can flava look like this in spring?
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Old Sunday 31st May 2020, 04:52   #2
Deb Burhinus
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Why not a female flava?
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Last edited by Deb Burhinus : Sunday 31st May 2020 at 04:54. Reason: typo
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Old Sunday 31st May 2020, 15:22   #3
Michał Jaro
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Why not? I just don't know exactly why. However, gray-white birds (first year) are described as possible eastern.
I don't have a detailed guide, but there are materials on the web. Anyway, I've never seen such a "snow-white" head and such a gray top, especially since it is the beginning of May.
Example:
https://www.researchgate.net/publica..._vocalisations.
However, I do not know if I interpret it correctly.
Of course, I do not mean certainty - I know that you need a call. But the point is, if such a bird can be suspected in the direction of "eastern"?

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Old Monday 1st June 2020, 02:41   #4
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Doesn’t the yellow coloring exclude eastern?
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Old Wednesday 3rd June 2020, 21:25   #5
Michał Jaro
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Based on what I read in the net - no. But I just need some advice because my knowledge may be partial.
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Old Wednesday 3rd June 2020, 21:35   #6
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Quote:
Originally Posted by Deb Burhinus View Post
Why not a female flava?
Seems the most likely option. It's a non-starter for me based on my own (admittedly rather limited) experience with EYW in Asia, and wouldn't take a second glance if I saw it in continental Europe - in fact I saw two birds paler than this in a single flock in the UK this spring. With a recording of the call, analysis of sonogram and clear images of the hind claw, you may have a better response.
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Old Wednesday 3rd June 2020, 21:54   #7
Michał Jaro
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Ok thanks a lot for your help. I will just notice, that it is not only a pale bottom but also a fairly uniform gray top. I understand that these colours are good for searching eastern yw, but - with a microphone and good zoom
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