Black-naped Tern vs Tahiti Petrel

The Black-naped Tern and Tahiti Petrel are distinct in appearance and behavior, with the tern being a small, slender seabird and the petrel a larger, more robust bird. Key differences include size, flight style, and plumage patterns.

Look for the black nape and cap on the tern, which is absent in the petrel. Observe the flight style: terns have rapid wingbeats, while petrels glide more. Note the habitat: terns are often near shorelines, petrels are usually seen far offshore.

The Black-naped Tern is smaller and more slender compared to the larger, plumper Tahiti Petrel.

The Black-naped Tern is mostly white with a distinctive black nape and cap, while the Tahiti Petrel has dark upperparts and a contrasting white belly.

Black-naped Terns have a more direct flight with rapid wingbeats, whereas Tahiti Petrels exhibit looser, more languid wingbeats with swooping glides.

Black-naped Terns are typically found in coastal and marine environments, often near islands, while Tahiti Petrels are pelagic, spending most of their time over open ocean.