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Larus ridibundus
"Guincho-comum (Larus ridibundus), a passar de plumagem nupcial (capuz preto) a Inverno (cabeça quase toda branca)" Passing from a nuptial plumage (black hood) to a winter plumage, almost white
Spotted on Feb 16, 2012
Submitted on Apr 17, 2013
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