Mongolian Gull ( Larus mongolicus) is large gull of the herring gull/lesser black-backed gull complex which breeds in North-east Asia. There are several sub-species however, Mongolian gull vary by its back and wings. The head of the Mongolian gull is mainly white all year round with only faint winter streaking. The legs are usually pink and the eye is usually pale with a red orbital ring. The bill is yellow with a large red spot and often with dark markings in first-, second- and third-year gulls. First- and second-winter Mongolian gulls have heavy brown/gray streaking and flecking over most of body and wings, much like the Vega gull, but not as dark.
Length : 56–68 cm
Wingspan: 55–67 cm
Weight : male 1150–1580 g, female 850–1100 g
Population : The overall population trend is uncertain, as some populations are decreasing, while others are increasing, stable or have unknown trends.
Habitat: Mainly coastal and near-coastal areas; also inland, at large lakes and reservoirs.
Diet: Diet includes marine invertebrates, fish, insects, refuse, and other seabirds; sometimes gorges on berries, even bayberry.