Photo: George Armistead/Vireo

Wedge-rumped Storm-petrel

Oceanodroma tethys

Nesting on islands off the west coast of South America, this bird wanders widely in offshore waters of the eastern Pacific. A few individuals have been known to stray as far north as California. The race of this species breeding in the Galapagos is the only storm-petrel that regularly visits its nesting colonies by day.
Family Northern Storm-Petrels
Nesting on islands off the west coast of South America, this bird wanders widely in offshore waters of the eastern Pacific. A few individuals have been known to stray as far north as California. The race of this species breeding in the Galapagos is the only storm-petrel that regularly visits its nesting colonies by day.
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Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds

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Songs and Calls
Makes sharp, squeaky notes at sea that are rarely heard. At breeding colonies makes twittering and purring notes.
Audio © Lang Elliott, Bob McGuire, Kevin Colver, Martyn Stewart and others.
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