Fulmar Prion vs Antarctic Petrel

Pachyptila crassirostris compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Fulmar Prion Antarctic Petrel
Scientific Name Pachyptila crassirostris Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 36.4 cm (14.3 in) 59.2 cm (23.3 in)
Weight 142.83333333333334 g (5.04 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Fulmar Prion only

Antarctic Petrel only

None

Conservation Status

Least Concern

Fulmar Prion

Least Concern

Antarctic Petrel

About These Birds

Fulmar Prion

26–28 cm. Intermediate-sized prion with a thick, fulmar-like bill; pale grey above with dark wing pattern. Breeds Bounty, Snares, and Heard islands. Resembles Broad-billed but has heavier bill base. Feeds on crustaceans; overlaps broadly with other prions 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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