Slaty-backed Gull (schistisagus) / オオセグロカモメ / 큰재갈매기

(last update: December 2015)

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

Slaty-backed Gull (schistisagus) 3rd cycle (3CY), September 15 2009, Nemuro, Hokkaido, Japan. Picture: Hannu Huhtinen.

Active complete moult, moulting to 3rd cycle. P1-P8 new 3rd gen. New 3rd gen tail again showing much black. Moult in rectrices and secondaries, block of central secondaries still old, 2nd gen.