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GG Shrike - Homeyeri ? (Poland)

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Old Wednesday 22nd January 2020, 22:27   #1
Michał Jaro
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GG Shrike - Homeyeri ? (Poland)

I suspect that these shrikes are homeyeri (2 birds) - a whitish tail uppertail coverts, a large white spot on the wing, and white edge rectrices - is that right ?
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Old Thursday 23rd January 2020, 06:51   #2
Jean FRANCOIS
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The tail pattern is more in favour of excubitor (Svensson, Id. Guide to Eur. Passerines).
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Old Thursday 23rd January 2020, 07:27   #3
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https://birdingfrontiers.wordpress.c...shrike-update/
the second outermost tail feather T5 looks to have black on inner web so I agree with Jean
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Old Thursday 23rd January 2020, 23:24   #4
Michał Jaro
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Many thanks for explains !
What about these 2 other birds (1 and 2 pict. - one bird - 3,4 second)?
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Old Friday 24th January 2020, 00:18   #5
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Many thanks for explains !
What about these 2 other birds (1 and 2 pict. - one bird - 3,4 second)?
Same tail pattern here in both birds

How is GGS doing in Poland? When I was birding there 15 years ago it was still a very common bird, in Luxembourg it will soon be lost.
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Old Friday 24th January 2020, 22:17   #6
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Thanks for the hints. From my observations and ornitho.pl, I think there is no decrease in the number of GGS in Poland. What is the reason for the disappearance of the GGS in Luxembourg?
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Old Friday 24th January 2020, 22:26   #7
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Thanks for the hints. From my observations and ornitho.pl, I think there is no decrease in the number of GGS in Poland. What is the reason for the disappearance of the GGS in Luxembourg?
It also disappears from France.
It's multifactorial :
- climate change,
- changing landscapes, turning the prairies for cultivation, arraing of hedgerows, etc.
- predation of Carrion Crow.
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Old Friday 24th January 2020, 23:25   #8
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Ok, I understand. In my region (Orava-Nowskarska valley) the process is reversed - the fields turn into a wild preiries ..
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