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) 2nd cycle / 3CY May

In spring, birds develop a white head, with streaking concentrated around the eye and in the lower neck.

Slaty-backed Gull (schistisagus) 2nd cycle (3CY), May 15 2014, Choshi, Chiba, Japan. Picture: Shiroto.