Variations of the primary wing-tip pattern of large gulls such as Vega Gull are various and it can be said that each individual is all different. However, this primary wing-tip pattern has a characteristic in each species and this is one of the important information to judge the species. A purpose of this site is to see the variety of variations of the primary wing-tip pattern of large gulls.
This is pure white above chest only with a little streaks for this time of year. But bill with no dark subterminal markings and with no black markings on P4.
For a moment I thought this bird to be a Thayer’s gull. Because it’s upperparts looks paler. But I think that this one’s primaries pattern is standard of Vega’s.