
Photo: (c) Nigel Voaden, some rights reserved (CC BY) · CC BY 4.0
Larus hyperboreus
Range
Breeds in Arctic regions of the Northern Hemisphere; winters south to the shores of the Holarctic
Clutch size
2–4 light brown eggs with dark brown splotches
Weight
960–2,700g
The glaucous gull is a large gull, the second-largest gull in the world, weighing 960–2,700g. Adults are pale grey above with a thick yellow bill; juveniles are very pale grey with a pink and black bill. 'Glaucous' denotes the grey colour, and an older English name is burgomaster (Wikipedia, general species account).
It breeds in Arctic regions of the Northern Hemisphere and winters south to the shores of the Holarctic. It is migratory, wintering in the North Atlantic and North Pacific as far south as the British Isles and the northernmost United States, and on the Great Lakes. Normally two to four light brown eggs with dark brown splotches are laid (Wikipedia, general species account).