Black Headed on Head

In the summer the adult bird has a chocolate-brown head (not black, although does look black from a distance), which means we must be very close to summer if this picture can be trusted. And it can.

The Black-headed Gull is a bold and opportunistic feeder and will eat insects, fish, seeds, worms, scraps and carrion in towns, or take invertebrates in ploughed fields with equal relish. This is a noisy species, especially in colonies, with a familiar "kree-ar" call. Its scientific name means "laughing gull". These birds are long-lived birds, with a maximum age of at least 32.9 years recorded in the wild, in addition to an anecdote now regarded to be of dubious authenticity regarding a 63-year old bird!

Thanks Wikipedia.