Jouanin's Petrel vs Antarctic Petrel

Bulweria fallax compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Jouanin's Petrel Antarctic Petrel
Scientific Name Bulweria fallax Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Near Threatened Least Concern
Length — —
Wingspan 48.2 cm (19.0 in) 59.2 cm (23.3 in)
Weight 167.5 g (5.91 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size -- 1
Population Trend — —

Conservation Status

Near Threatened

Jouanin's Petrel

Least Concern

Antarctic Petrel

About These Birds

Jouanin's Petrel

43–45 cm. Larger than Bulwer's Petrel; all sooty-brown with a wedge-shaped tail and faint pale wing-bar. Breeds southern Arabian Sea islands (Socotra region); ranges in Indian Ocean. Near Threatened; poorly studied. Feeds on squid and fish; crepuscular and nocturnal 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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