Pycroft's Petrel vs Antarctic Petrel

Pterodroma pycrofti compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Pycroft's Petrel Antarctic Petrel
Scientific Name Pterodroma pycrofti Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Vulnerable Least Concern
Length — —
Wingspan 42.8 cm (16.9 in) 59.2 cm (23.3 in)
Weight 156.5 g (5.52 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Pycroft's Petrel only

Antarctic Petrel only

None

Conservation Status

Vulnerable

Pycroft's Petrel

Least Concern

Antarctic Petrel

About These Birds

Pycroft's Petrel

26–28 cm. Small; pale grey above with dark M-mark; white underparts with partial dark collar. Breeds small islands off northern New Zealand (Poor Knights, Hen & Chickens). Vulnerable; migrates to North Pacific. Feeds on squid and fish; nocturnal at colonies; threatened by rats.

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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