Can be a Caspian Gull?

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paseriformes
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Can be a Caspian Gull?

Post by paseriformes » Wed Dec 09, 2009 9:22 pm

My colleague Javier Marchamalo sent me this two pictures to ask your opinion.

Delfín
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Posible Caspica.jpg
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Argentea y posible caspica.jpg
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Ruud Altenburg
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Re: Can be a Caspian Gull?

Post by Ruud Altenburg » Thu Dec 10, 2009 10:19 am

No, rather a YLG or even LBBG. In Caspian you would notice a paler overall brown of the juvenile feathers and normally less boldly marked second generation feathers. Another obvious character for Caspian is the pale tips to the greater coverts.
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marsmuusse
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Re: Can be a Caspian Gull?

Post by marsmuusse » Thu Dec 10, 2009 10:23 am

Agree with Ruud, micha probably.
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