Gulls; Skeppsbron

Lesser Black backed Gull; 1st Calender; Light Morph; a real stunner...

Baltic Lesser Black backed Gull, adult.

Greater Black backed Gull; 2nd Calender

Argentatus Herring Gull...line drawing

Drawings here from Skeppsbron, the learning curve goes on. Large gulls are the ultimate ID challenge, learning them requires time. It has it's rewards, understanding moult and individuual variation have opened my eyes...