Coordinators:
John Cant
Mars Muusse
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Heermann's Gull heermannii adult PB moult, July 09 2013, Pacific Grove, California USA. Picture: John Cant.
P8-P10 old, P5 fully grown. Old coverts bleached and have worn fringes. Lack of bold white tips on rectrices due to heavily worn feathers.
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Heermann's Gull heermannii