The black-naped tern is an oceanic tern mostly found in tropical and subtropical areas of the Indian Ocean and western Pacific Ocean. They are rarely found inland. It was described from the islands around Sumatra. It is most closely related to roseate tern S. dougallii and white-fronted tern S. striata.
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Low-Light Telephoto Systems
Identifying specific features of the Black-naped Tern requires high-contrast magnification. Check out the top-rated 8x42 optics.