Gull ID - Switzerland (1 Viewer)

[misikuru]

Hello. Can someone help me ID the large gull on the right, please?
I saw it on the 5th December last year on Zurich lake.
I thought it's a Yellow-legged, but I started wondering if it might be a Lesser black-backed.

The grey colour looks darker than that of Yellow-legged, but maybe it's just because of the gloomy weather.

 

[Prestdj]

its a lesser black backed gull nice photos

 

[Richard Prior]

An adult that has been present since early September last year!

 

[misikuru]

its a lesser black backed gull nice photos

An adult that has been present since early September last year!

Thank you so much, Prestdj and Richard! So the darker grey, smaller body and slender bill wasn't just my imagination