American Herring Gull (smithsonianus)

(last update: October 30, 2015)

Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

Slaty-backed Gull (schistisagus) 1st cycle (2CY), January 17 2012, Choshi, Japan. Picture: Michiaki Ujihara.

Please visit Japanese Gull site for many more pictures!

All scaps, except longest rear scapulars, replaced for 2nd gen feathers. Body feathers: on head, neck and side of breast replaced as well. Otherwise juvenile plumage.