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Side-by-Side Comparison

Attribute	Cape Verde Shearwater	Balearic Shearwater
Scientific Name	Calonectris edwardsii	Puffinus mauretanicus
Order	Procellariiformes	Procellariiformes
Family	Procellariidae	Procellariidae
Conservation Status	Near Threatened	Critically Endangered
Length	—	—
Wingspan	61.8 cm (24.3 in)	48.4 cm (19.1 in)
Weight	470.0 g (16.58 oz)	514.8 g (18.16 oz)
Diet	--	--
Clutch Size	1	1
Population Trend	—	—

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Habitat Comparison

Shared Habitats

None

Cape Verde Shearwater only

None

Balearic Shearwater only

🏖️ Coastal

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Conservation Status

Near Threatened

Cape Verde Shearwater

Critically Endangered

Balearic Shearwater

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About These Birds

Cape Verde Shearwater

43–47 cm. Smaller than Cory's Shearwater; grey-brown above, white below with yellow bill. Breeds Cape Verde Islands. Migrates south through east Atlantic to south Atlantic and Indian Ocean. Near Threatened; threatened by introduced cats and rats; feeds on fish and squid.

Balearic Shearwater

30–38 cm. Brown above; variably dirty-white to brown below; often shows brown smudging on flanks. Breeds only Balearic Islands, Spain. Critically Endangered with fewer than 3,000 pairs; faces extinction. Migrates to NE Atlantic; threatened by predators, fishing bycatch, and tourist development.

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