Post : 2017 , February

Thayer’s Gull
Larus glaucoides thayeri

Kanada-kamomeKanadakamome カナダカモメ

Thayer's GullThayer's GullThayer's Gull

The fourth Thayer's Gull which I watched in this season at the Imperial Palace. The primaries pattern of this gull is not a typical pattern of Thayer's Gull. Although black markings of this gull's primaries are not jet black but slightly light black. But I'm not sure about this bird.

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