Black-headed Gull

Melanistic Black-headed Gull, Milton, 30th Nov 2006, © Dick Newell
One of two seen previously at Grafham, this bird was so completely coloured grey that staining seems to be unlikely. The underparts were subtly paler. The wings and tail were wholly dark apart from a white outer primary shaft. The bill and legs were both darker and the bird seemed slightly smaller than other Black-headed Gulls present (RGN).