
Naming
The species is widely distributed in the Americas. There are two subspecies:⤷ ''T. a. acuflavidus'' − eastern North America to southern Caribbean.
⤷ ''T. a. eurygnathus'' − Cayenne tern, islands off Venezuela and the Guianas, northern and eastern South America.

Distribution
The species is widely distributed in the Americas. There are two subspecies:⤷ ''T. a. acuflavidus'' − eastern North America to southern Caribbean.
⤷ ''T. a. eurygnathus'' − Cayenne tern, islands off Venezuela and the Guianas, northern and eastern South America.
References:
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