Kermadec Petrel vs Antarctic Petrel

Pterodroma neglecta compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Kermadec Petrel Antarctic Petrel
Scientific Name Pterodroma neglecta Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 57.6 cm (22.7 in) 59.2 cm (23.3 in)
Weight 452.5 g (15.96 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Conservation Status

Least Concern

Kermadec Petrel

Least Concern

Antarctic Petrel

About These Birds

Kermadec Petrel

38 cm. Polymorphic: pale morph has white underparts; dark morph is all brown-grey. Breeds Kermadec, Juan Fernandez, and Pacific islands. Ranges widely in subtropical and tropical Pacific. Feeds on fish and squid; nests in rock crevices and burrows.

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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