The Genus Onychoprion is further organized into finer groupings including:
- Species: ZipcodeZoo has pages for 15 species and subspecies in the Genus Onychoprion: (Aleutian Tern) · (Bridled Tern) · · · · · (Sooty Tern) · · · · · · · · (Gray-Backed Tern)
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