Black-tailed Gull (crassirostris) / ウミネコ / 괭이갈매기

(last update: December 2015)

Kim Seog-min (South Korea)
Hideo Shimura (Japan)
Peter Adriaens (Belgium)
Mars Muusse (Netherlands)

Black-tailed Gull (crassirostris) 1st cycle (1CY), October 20 2011, Lake Koto, Tokyo, Japan. Picture: リスキーマウス.

Please visit リスキーマウス's blog.

Most of the scaps now replaced in post-juvenile moult. Birds otherwise in juvenile plumage, with 1st generation flight feathers.