GG Shrike - Homeyeri ? (Poland) (1 Viewer)

Michał Jaro

Well-known member

• Jan 22, 2020

• #1

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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Jean FRANCOIS

Well-known member

• Jan 23, 2020

• #2

The tail pattern is more in favour of excubitor (Svensson, Id. Guide to Eur. Passerines).
Jean

 

tconzemi

Tom

Supporter

• Jan 23, 2020

• #3

https://birdingfrontiers.wordpress.com/2010/12/15/sheffields-steppe-shrike-update/
the second outermost tail feather T5 looks to have black on inner web so I agree with Jean

 

Michał Jaro

Well-known member

• Jan 23, 2020

• #4

Many thanks for explains !
What about these 2 other birds (1 and 2 pict. - one bird - 3,4 second)?

 

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tconzemi

Tom

Supporter

• Jan 24, 2020

• #5

Michał Jaro;3951060 said:

Many thanks for explains !
What about these 2 other birds (1 and 2 pict. - one bird - 3,4 second)?

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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.

 

Michał Jaro

Well-known member

• Jan 24, 2020

• #6

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?

 

Jean FRANCOIS

Well-known member

• Jan 24, 2020

• #7

Michał Jaro;3951476 said:

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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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.
Jean

 

Michał Jaro

Well-known member

• Jan 24, 2020

• #8

Ok, I understand. In my region (Orava-Nowskarska valley) the process is reversed - the fields turn into a wild preiries ..