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Side-by-Side Comparison

Attribute	Band-rumped Storm-petrel	Guadalupe Storm-petrel
Scientific Name	Hydrobates castro	Hydrobates macrodactylus
Order	Procellariiformes	Procellariiformes
Family	Hydrobatidae	Hydrobatidae
Conservation Status	Least Concern	Not Evaluated
Length	—	—
Wingspan	30.1 cm (11.9 in)	32.7 cm (12.9 in)
Weight	49.25 g (1.74 oz)	36.71 g (1.29 oz)
Diet	--	--
Clutch Size	1	1
Population Trend	—	—

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Habitat Comparison

Shared Habitats

None

Band-rumped Storm-petrel only

None

Guadalupe Storm-petrel only

🌲 Forest

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Conservation Status

Least Concern

Band-rumped Storm-petrel

Not Evaluated

Guadalupe Storm-petrel

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About These Birds

Band-rumped Storm-petrel

Band-rumped Storm-petrel, 19–21 cm, breeds on Atlantic and Pacific volcanic islands including the Azores, Canaries, and Galápagos. Sooty brown with a white rump band; similar to Leach's but straighter wingtips and steadier flight. Multiple cryptic species may be involved. Planktivore; widespread pelagic.

Guadalupe Storm-petrel

Guadalupe Storm-petrel, 22–23 cm, is Critically Endangered — possibly extinct; no confirmed sightings since the 1930s when cats eliminated the colony on Guadalupe Island. Large, all-dark storm-petrel very similar to Black Storm-petrel. Status uncertain; intensive searches have not relocated any individuals.

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More Birds to Explore

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