May 1982 – vol. 75, issue 5, pp 225–229 Dark eye-patch of Fulmar M. Densley's paper on Ross's Gull Rhodostethia rosea (Brit. Birds 72:23-28) drew attention to the structure and possible function of dark, bristle-like feathers surrounding the eyes of that species in winter plumage. A close examination of the dark eye-patch of the Fulmar Fulmarus glacialis reveals a somewhat similar structure: each dark feather has the central rachis bar... This article is only available to registered users.To read more, please log in or purchase a subscription.