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A long-necked, long-tailed swimmer of southeastern swamps. Often seen perched on a snag above the water, with its wings half-spread to dry. Can vary its buoyancy in water, sometimes swimming with only head and neck above water (earning it the nickname of 'Snakebird'). Often solitary when feeding, it roosts in groups and nests in colonies. Looks rather like a cormorant when perched, but not in flight, when the long tail may be spread wide as the Anhinga soars high on outstretched wings. Anhingas are silent at most times, but around nesting colonies they make various croaking and clicking sounds.