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Records by Hokkaido, 2021, Oct, Slaty-backed Gull

Slaty-backed Gull
Slaty-backed Gull / Larus schistisagus
Observe on Tue, 10/26/2021
Slaty-backed Gull
Slaty-backed Gull / Larus schistisagus
Observe on Sat, 10/23/2021
Slaty-backed Gull
Slaty-backed Gull / Larus schistisagus
Observe on Sat, 10/23/2021
Slaty-backed Gull
Slaty-backed Gull / Larus schistisagus
Observe on Sat, 10/23/2021