Cormorants and Darters (Anhingas)
Here we cover cormorants and anhingas, two somewhat similar looking birds. Cormorants are groupies with infectious behaviors, while Anhingas appear less communal
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Mature Anhinga
Waterbirds have a gland near their tail (Uropygial gland) that produces the oils that help keep feather flexible and provide buoyancy. Long-necked birds use their head feathers to distribute this oil from the gland to other sections of their plumage.
