Greig, K. M, Radford, A. P & Hartley, I. R / October 1989 – vol. 82, issue 10, pp 446–447 Male King Eider displaying to Eiders. The note on a male Red-breasted Merganser Mergus senator displaying to a party of Goosanders M. merganser (Brit. Birds 79: 89) prompts the following. In the evening of 23rd May 1986, while watching 200-300 Eiders Somateria mollissima feeding and displaying at the mouth of the River Ythan, Aberdeenshire, I noticed that one group of eight males include... This article is only available to registered users.To read more, please log in or purchase a subscription.