Yellow-legged Gull at Prince's Park Eastbourne

Juvenile Gulls have always been a mystery to me, but today I made progress with my first ever sighting of a Yellow-legged Gull.

Thanks, again, to Beachy Birder who tweeted his sighting and was kind enough to point it out to me.

I managed to 'get my eye in' and could discriminate quite quickly between it and the juvenile Herring Gulls, also present on the boating lake at Prince's Park.

The juvenile Yellow-legged Gull.

               

Thick, heavy bill and long dark primaries.

A comparison with a Herring Gull juvenile in the foreground. 

A closer comparison of the bills, with the Yellow-legged Gull in front of a Herring Gull.