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| Coordinator: Greg Neubauer Marcin Przymencki Albert de Jong Mars Muusse cachinnans plumages |
Larus cachinnans 2CY, March 18 2013, IJmuiden, the Netherlands. Picture: Lars Buckx. Only single inner lower covert and no tertials replaced in post-juvenile moult. With adult Caspian Gull.
below: with 3CY Herring Gull.
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