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Side-by-Side Comparison

Attribute	Matsudaira's Storm-petrel	European Storm-petrel
Scientific Name	Hydrobates matsudairae	Hydrobates pelagicus
Order	Procellariiformes	Procellariiformes
Family	Hydrobatidae	Hydrobatidae
Conservation Status	Vulnerable	Least Concern
Length	—	—
Wingspan	37.0 cm (14.6 in)	23.8 cm (9.4 in)
Weight	62.0 g (2.19 oz)	26.5 g (0.93 oz)
Diet	--	--
Clutch Size	--	1
Population Trend	—	—

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Conservation Status

Vulnerable

Matsudaira's Storm-petrel

Least Concern

European Storm-petrel

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About These Birds

Matsudaira's Storm-petrel

Matsudaira's Storm-petrel, 24–26 cm, is a large, all-dark storm-petrel breeding on Volcano and Ryukyu Islands of Japan. Long-winged, slow flapping flight. Winters off East Africa and the Arabian Sea — an Indian Ocean migrant from North Pacific colonies. Planktivore and surface feeder.

European Storm-petrel

European Storm-petrel, 14–18 cm, wingspan 36–39 cm, is the smallest seabird in European waters, breeding in burrows and rock crevices on Atlantic islands from Iceland to the Mediterranean. Entirely sooty black with white rump. Strictly nocturnal at colonies. Planktivore; patters over wave surface picking up oil and plankton.

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