How To Tell A Neotropic Cormorant
The neotropic cormorant has several characteristics that separate it from the more common double-crested cormorants. The neotropic is smaller and slimmer and its tail is longer. It has a white line outlining the base of the bill. Commonly called a lipstick line. Double-crested don't have this but neither do neos when in non-breeding plumage or juveniles. The shape of the yellow throat patch is different between the two birds. They both get some white crest feathers during breeding season. Behavior wise, double-crested hang out in groups while neos are more solitary. When you only see one bird & it is not breeding season, there is still one very easy way to tell the difference. The neo has black feathers immediately surrounding the eye and the double-crested has yellow surrounding the eye. This, you can spot, even at a distance.
Neotropic Cormorant (Phalacrocorax brasilianus)
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