Mascarene Petrel vs Antarctic Petrel

Pseudobulweria aterrima compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Mascarene Petrel Antarctic Petrel
Scientific Name Pseudobulweria aterrima Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Critically Endangered Least Concern
Length — —
Wingspan 50.6 cm (19.9 in) 59.2 cm (23.3 in)
Weight 220.66666666666666 g (7.78 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size -- 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Mascarene Petrel only

Antarctic Petrel only

None

Conservation Status

Critically Endangered

Mascarene Petrel

Least Concern

Antarctic Petrel

About These Birds

Mascarene Petrel

35–36 cm. All-black petrel with hooked bill. Critically Endangered; breeds only Réunion Island; fewer than 250 adults estimated. One of the rarest seabirds. Threatened by introduced predators and light attraction; known mainly from bones and very occasional sightings 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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