American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

putative American Herring Gull (smithsonianus) adult, Azores, Junco, Terceira, February 13 2011. Picture: Vincent Legrand.

See also: here.

Look at the wing-tip pattern, especially the W-shape on P6, P7 and the grey tongue on P8, P9 and the grey mantel. This is like an 'argenteus'-type grey bird, but the bird is huge.