Gull Research Organisation

(last update: October 30, 2015)

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

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See Mike's Picasa website for many more taxa and images of American Herring Gull.

Showing underwing. Note 3rd gen secondaries with large white tips, inner primaries and white tips on central primaries.