Antarctic Prion vs White-winged Petrel

Pachyptila desolata compared with Pterodroma leucoptera

Side-by-Side Comparison

Attribute Antarctic Prion White-winged Petrel
Scientific Name Pachyptila desolata Pterodroma leucoptera
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Vulnerable
Length
Wingspan 36.5 cm (14.4 in) 42.4 cm (16.7 in)
Weight 149.0 g (5.26 oz) 194.5 g (6.86 oz)
Diet -- --
Clutch Size 1 1
Population Trend

Habitat Comparison

Shared Habitats

None

Antarctic Prion only

White-winged Petrel only

Conservation Status

Least Concern

Antarctic Prion

Vulnerable

White-winged Petrel

About These Birds

Antarctic Prion

25–28 cm, wingspan 58–66 cm. Classic prion pattern: pale blue-grey, white below, bold dark M across upperwing. Medium-broad bill. Most abundant and widespread prion; breeds South Georgia, Heard, Kerguelen, Macquarie. Feeds on crustaceans; makes deep dives compared to congeners.

White-winged Petrel

30 cm. Small; pale grey above with dark M-mark; white below with partial dark collar. Breeds Cabbage Tree Island (NSW Australia) and Pitcairn Islands. Vulnerable; restricted breeding range; feeds on squid and fish in subtropical Pacific.

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