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Species Guide
A photo of a Wedge-rumped Storm Petrel (Hydrobates tethys)
Wedge-rumped Storm Petrel

Wedge-rumped Storm Petrel

Hydrobates tethys

The Wedge-rumped Storm Petrel, known scientifically as Hydrobates tethys, is a member of the storm petrel family. This small seabird is recognized by its distinctive wedge-shaped tail.

Identification Tips

When observing the Wedge-rumped Storm Petrel, look for its dark plumage, which is uniform across its body. The tail is a key feature, with a wedge shape that is particularly noticeable in flight.


This species is known to breed on the Galápagos Islands and along the coast of Peru, favoring rocky shores and islands where it can nest in crevices away from predators.


The Wedge-rumped Storm Petrel is found in the Pacific Ocean, with its breeding range limited to the Galápagos Islands and the Peruvian coast.


The Wedge-rumped Storm Petrel exhibits typical storm petrel behavior, including its flight pattern. It often appears to dance across the water's surface as it feeds.

Conservation status

The IUCN Red List classifies the Wedge-rumped Storm Petrel as Least Concern, indicating that, at present, there are no immediate threats to its population numbers that would warrant a higher level of concern.

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Wedge-rumped Storm Petrels on Birda


More Northern Storm Petrels

A photo of a Band-rumped Storm Petrel (Hydrobates castro)

Band-rumped Storm Petrel

Hydrobates castro
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