Recently came across stumpy, the famous Caspian gull with the severed leg. Seen him a couple of times before, he has also now developed a nervous twitch, a little shake of the head every ten or eleven seconds making him even more recognizable. Thought to be around sixteen years old (at least, as it was an adult when first seen).

http://www.birdguides.com/webzine/article.asp?a=1909