Kerguelen Petrel vs Antarctic Petrel

Aphrodroma brevirostris compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Kerguelen Petrel Antarctic Petrel
Scientific Name Aphrodroma brevirostris Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 48.0 cm (18.9 in) 59.2 cm (23.3 in)
Weight 353.0 g (12.45 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Kerguelen Petrel only

Antarctic Petrel only

None

Conservation Status

Least Concern

Kerguelen Petrel

Least Concern

Antarctic Petrel

About These Birds

Kerguelen Petrel

33–36 cm, wingspan 80–85 cm. Dark grey-brown with short rounded bill; distinctive silvery-white flash on leading edge of underwing. Breeds Tristan da Cunha, Gough, Crozet, and Kerguelen. Ranges widely in Southern Ocean; feeds on fish and squid; solitary at sea.

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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