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

(last update: December 2015)
Coordinators:
Kim Seog-min (South Korea)
Hideo Shimura (Japan)
Peter Adriaens (Belgium)
Mars Muusse (Netherlands)

crassirostris rings
crassirostris PDFs

1CY July-Sept
1CY Oct-Dec

2CY Jan-March
2CY April-June
2CY July-Sept
2CY Oct-Dec

3CY Jan-March
3CY April-June
3CY July-Sept
3CY Oct-Dec

sub-ad Jan-March
sub-ad April-June
sub-ad July-Sept
sub-ad Oct-Dec

adult Jan-March
adult April-June
adult July-Sept
adult Oct-Dec

Black-tailed Gull (crassirostris) 1st cycle / 2CY January - March

Birds in 1st cycle plumage, late winter after post-juvenile moult.

Black-tailed Gull (crassirostris) 1st cycle (2CY), February 25 2015, Chidiwa Unzen city, Nagasaki, Japan. Picture: Nobuo Fukushima.
Black-tailed Gull (crassirostris) 1st cycle (2CY), February 24 2015, Chidiwa Unzen city, Nagasaki, Japan. Picture: Nobuo Fukushima.
Black-tailed Gull (crassirostris) 1st cycle (2CY), March 21 2014, Ishikawa bay, Okinawa, Japan. Picture: Shawn Miller.
Black-tailed Gull (crassirostris) 1st cycle (2CY), March 12 2014, Chidiwa Unzen city, Nagasaki, Japan. Picture: Nobuo Fukushima.
Black-tailed Gull (crassirostris) 1st cycle (2CY), February 25 2015, Chidiwa Unzen city, Nagasaki, Japan. Picture: Nobuo Fukushima.
Black-tailed Gull (crassirostris) 1st cycle (2CY), March 12 2014, Chidiwa Unzen city, Nagasaki, Japan. Picture: Nobuo Fukushima.
Black-tailed Gull (crassirostris) 1st cycle (2CY), February 04 2015, Chidiwa Unzen city, Nagasaki, Japan. Picture: Nobuo Fukushima.
Black-tailed Gull (crassirostris) 1st cycle (2CY), February 20 2010, Anping Harbor, Taiwan. Picture: Sin Syue Li.
Black-tailed Gull (crassirostris) 1st cycle (2CY), February 01 2008, Anping Harbor, Taiwan. Picture: Sin Syue Li.
Black-tailed Gull (crassirostris) 1st cycle (2CY), February 17 2008, Anping Harbor, Taiwan. Picture: Sin Syue Li.