American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

American Herring Gull (smithsonianus) sub-adult, October 19 2009, Pea Island NWR, Dare Co., NC. Picture: Frode Jacobsen.

See Frode's Flickr photo's.

Overall adult bird with broad band over the bill and black spot in upper tertial (TT2) suggesting 4th cycle. Complete moult: P7 full grown, P8 almost equal to P7.