American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

American Herring Gull (smithsonianus) 4cy, February 24 2008, St. John's, Newfoundland, Canada. Picture: Bruce Mactavish.

Mirror on P10. White innerweb on P10 from below already relatively long, it ends in a 90 degrees angle, quite abrupt, not gradually (oblique). W-shape pattern on P5 starting to show. Note prominent white tip, normally rather small in this age smithsonianus.