Drawing depicting: Larus hyperboreus -- Glaucous Gull; Gaviota blanca, goéland bourgmestre. Alternate name on piece: Larus glaucus [Glaucous gull], Drawing on tissue: this is a fragment which was clipped out, showing only the second bird; marks on both pieces show that Gould 1912 was at one time pasted over the corner of Gould 1630.
