American Herring Gull (smithsonianus)

(last update: October 30, 2015)
Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

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American Herring Gull (smithsonianus) adult, April 04 2010, Chester Basin, Nova Scotia, Canada. Picture: Maxine Quinton.

Classic wing-tip pattern:
- Long white tongue on P10, in combination with full sub-terminal band.
- No mirror on P9.
- Black on P9 hardly meets greater primary coverts (only at very edge of the feather).
- 'bajonets' (long black points at outer edge of feather) on P6-P7.
- W-shape on P5 (only in right wing).