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Side-by-Side Comparison

Attribut	Least Storm-petrel	Wedge-rumped Storm-petrel
Nom scientifique	Hydrobates microsoma	Hydrobates tethys
Ordre	Procellariiformes	Procellariiformes
Famille	Hydrobatidae	Hydrobatidae
Statut de conservation	Least Concern	Least Concern
Longueur	—	—
Envergure	23,8 cm (9.4 in)	26,0 cm (10.2 in)
Poids	18,0 g (0.63 oz)	27,0 g (0.95 oz)
Régime alimentaire	--	--
Taille de la couvée	1	1
Population Trend	—	—

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Statut de conservation

Least Concern

Least Storm-petrel

Least Concern

Wedge-rumped Storm-petrel

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About These Birds

Least Storm-petrel

World's smallest seabird at 13–15 cm. Sooty-black with white rump; short rounded wings. Breeds Baja California islands; ranges offshore in eastern Pacific to Ecuador. Feeds on zooplankton and small fish by pattering on the surface. Nocturnal at breeding colonies; Near Threatened.

Wedge-rumped Storm-petrel

Wedge-rumped Storm-petrel, 19–21 cm, breeds in enormous colonies in the Galápagos and on islands off Peru. The largest white rump patch of any storm-petrel — nearly triangular, extending to the uppertail coverts. Unlike most storm-petrels, daytime activity at colonies. Planktivore in eastern Pacific upwelling.

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