Wedge-rumped Storm-petrel
Oceanodroma tethys

Family | Northern Storm-Petrels |
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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.
Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds
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Learn moreSongs and Calls
Makes sharp, squeaky notes at sea that are rarely heard. At breeding colonies makes twittering and purring notes.Learn more about this sound collection.