Gulls primary wing-tip patterns

Common Gull's primary wing-tip pattern

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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.

Mew Gull #15

• Russian Common Gull
• Roshia kamome : Japanese name
• Larus canus heinei : Scientific name
• Imperial Palace moat Hibiya : Field
• 2017/02/17 : Date
• right wing : Sample wing
• 50% : Confidence of ID

Small white mirror on P9. Small white moon on P7. Bill with complete dark subterminal bar.
I think that this bird is a heinei. But I’m not sure.

2017/02/23
［最終更新日］2017/09/18