Wings | Comment : Female as seen from right behind when the bird stretches out its wings. The structures of wing covert and flight feathers are apparent. The blue-green speculums, as seen at the stern of flanks when the bird closed its wings, are on secondaries. | ||||
Date taken : 2009.12.31 | Location : Midstream of Asakawa River | Photo by : Tetsuro Sato |