Orchard, M. J, Pennington, M. G & Hallam, N. J / December 1998 – vol. 91, issue 12, pp 561–563 I agree with Rob Hume's editorial comment on Roderick Thome's account of a presumed melanistic Black-headed Gull Larus ridibundus in Orkney (Brit. Birds 89: 570) that such melanism is rare among gulls. In ten years of active gull-watching, I have seen just two individuals which I believe were melanistic: both winter-plumaged adult Black-headed Gulls at Farmoor Reservoir, Oxfordshire. One, on 2nd Mar... This article is only available to registered users.To read more, please log in or purchase a subscription.