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Nov., x?o 7 x79 EGGS OF THE ROSY GULL By JOHN E. THAYER I HAD the good fortune to obtain from Mr. S. A. Buturlin, a Russian Ornitholo- gist, some eggs of Ross's Gull (Rhodoslelhia rosea), also a chick and a pair of adult birds in full breeding plumage. It was Mr. Buturlin who first found in 1905 this beautiful Gull breeding on the delta of the Kolyma River in northeast- ern Siberia. ADULT I?{ALE OF THI{ ROSV GULL; FROM MOUNTED SPECIMEN IN THE COLLECTION OF JOHN E. THAVER: ABOUT ONE-HALF NATURAL SIZE EGGS OF THE ROSY GULL; ABOUT ONE-HALF NATURAL SIZE In an interesting article which was published in The Ibis he says that it was May 30, 1905, that he saw the first a Rosy Gull. On June 13th, the day on which the ice on the Kolyma broke up, several clutches of eggs of this species were brought to him, all incubated. They breed in small colonies of from two to three a. Mr. Buturlin in his article always speaks of Rhodostelhia rosea as Rosy Gull; which I think a most appro- pt/ate name.