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Side-by-Side Comparison

Attribute	Soft-plumaged Petrel	Antarctic Petrel
Scientific Name	Pterodroma mollis	Thalassoica antarctica
Order	Procellariiformes	Procellariiformes
Family	Procellariidae	Procellariidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	48.6 cm (19.1 in)	59.2 cm (23.3 in)
Weight	315.0 g (11.11 oz)	658.3333333333334 g (23.22 oz)
Diet	--	--
Clutch Size	1	1
Population Trend	—	—

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Habitat Comparison

Shared Habitats

None

Soft-plumaged Petrel only

🏖️ Coastal

Antarctic Petrel only

None

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Conservation Status

Least Concern

Soft-plumaged Petrel

Least Concern

Antarctic Petrel

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About These Birds

Soft-plumaged Petrel

32–37 cm, wingspan 83–95 cm. Grey above; white below with a distinctive dark partial breast-band and dark-streaked face. Breeds Tristan, Gough, and southern Indian Ocean islands. Ranges widely in Southern Ocean. Feeds on fish and squid; arcs steeply in strong winds.

Antarctic Petrel

40–46 cm, wingspan 100–110 cm. Striking chocolate-brown and white pattern; only member of its genus. Breeds solely in Antarctica on cliff ledges; among the most southerly-nesting birds. Feeds on fish and krill beneath pack ice. Returns to colonies in October; one of the most abundant Antarctic seabirds.

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More Birds to Explore

More from Procellariidae

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

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