American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

Vega Gull (vegae) 1st cycle (2CY), January 31 2010, Choshi, Japan. Picture: Gullog.

Visit Gullog's BLOG.

Very similar to European Herring Gull argenteus. 1st gen flight feathers. Piano key pattern on GC but hardly any notching on TT.

Wing-coverts and tertials juvenile. Scap moult: US=75-99%, LS=1-25%, TOT SCAPS=50-75%.