Lesser black-backed gull? (2 Viewers)

[Michał Jaro]

Recently I observed an interesting seagull - it seemed darker to me than the Caspian herring gulls YL. Also, when observing the bird, I had the impression that it was noticeably darker - is it a Lesser black-backed gull? miejsce - Polska , Podhale, kilka dni temu. Additionally, it seems that the bird had very worn feathers, in addition to the red spot on its beak, there was also a dark stripe on its beak.

 

[Alexander Stöhr]

Hello Michal,

despite dark mantle, its no LBBG imo. It has not enough/extensive black in the wingtip and secondaries on the underwing are too pale.

The adult YLG I saw during the last week in SW-Germany had brighter yellow legs than your bird, I see bright pinkish-yellow legs on my actual screen (with the usual caveats). And a YLG should show a more extensive black wingtip.

First gut feeling of the standing bird is Caspian Gull with an appearantly dark, slightly displaced eye and bill shape.
But is such a broad and complete black band in the white tip of p10 still within variation for a pure Caspian Gull?
And I think primary pattern is good for a Herring Gull.

So taking location into account, I would say its a Caspian x Herring Gull hybrid.
But as always: ... thanks Lou and all!

 

[lou salomon]

It's a weird bird which I'd leave unidentified. Maybe a dark cachinnans x argentatus (would fit on primary pattern), maybe a weird cachinnans x fuscus. Alexander, yes, some Caspian Gulls do have a substantial black subterminal band on p10, maybe younger adults but possible also in full adults.

 

[Michał Jaro]

Thank you very much! As always, you are reliable. Your answers make me happy, although they do not indicate what species. But at least I know that I can spot among many individuals the ones that are interesting .