Aturnbull1
Member
I was birdwatching at Rufford Country Park this morning in Nottinghamshire. On the frozen lake, there was a small flock of gulls. One of which I couldn't identify. It had a black head and dark bill. Where the bill joined its head, there was a white patch. It is January and black headed gulls lose there black heads in the winter. Any ideas of what it could have been?