Yelkouan Shearwater vs Antarctic Petrel

Puffinus yelkouan compared with Thalassoica antarctica

Side-by-Side Comparison

Attribute Yelkouan Shearwater Antarctic Petrel
Scientific Name Puffinus yelkouan Thalassoica antarctica
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Vulnerable Least Concern
Length — —
Wingspan 45.8 cm (18.0 in) 59.2 cm (23.3 in)
Weight 422.5 g (14.90 oz) 658.3333333333334 g (23.22 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Yelkouan Shearwater only

Antarctic Petrel only

None

Conservation Status

Vulnerable

Yelkouan Shearwater

Least Concern

Antarctic Petrel

About These Birds

Yelkouan Shearwater

30–38 cm. Brown-black above, white below; similar to Manx but darker with brown flanks and dusky undertail. Breeds Mediterranean islands and coasts. Non-breeding range in eastern Mediterranean and Black Sea. Vulnerable; threatened by introduced predators and light pollution. Feeds on fish and squid.

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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