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) adult, February 24 2008, St. John's, Newfoundland, Canada. Picture: Bruce Mactavish.

Tongue on P10 >1/2 length of the visible feather. Sub-terminal black band on P10 broken. Medial band on P10 smaller than mirror on p10. Mirror on P9 on both webs and 'Thayeri' pattern on P9. Band on P5 also broken.