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Side-by-Side Comparison

Attribute	Great-winged Petrel	Balearic Shearwater
Scientific Name	Pterodroma macroptera	Puffinus mauretanicus
Order	Procellariiformes	Procellariiformes
Family	Procellariidae	Procellariidae
Conservation Status	Least Concern	Critically Endangered
Length	—	—
Wingspan	60.7 cm (23.9 in)	48.4 cm (19.1 in)
Weight	548.75 g (19.36 oz)	514.8 g (18.16 oz)
Diet	--	--
Clutch Size	1	1
Population Trend	—	—

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Habitat Comparison

Shared Habitats

None

Great-winged Petrel only

None

Balearic Shearwater only

🏖️ Coastal

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Conservation Status

Least Concern

Great-winged Petrel

Critically Endangered

Balearic Shearwater

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About These Birds

Great-winged Petrel

41 cm, wingspan 97 cm. Large all-dark gadfly petrel; dusky bill, black feet. Breeds on islands from Tristan da Cunha to SW Australia and New Zealand. Ranges widely in southern Atlantic, Indian, and Pacific oceans. Flies with characteristic high arcing; feeds on squid and fish.

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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More Birds to Explore

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Antarctic Petrel Thalassoica antarctica Antarctic Prion Pachyptila desolata Atlantic Petrel Pterodroma incerta Audubon's Shearwater Puffinus lherminieri All Procellariidae birds →

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