Antarctic Prion vs White-necked Petrel

Pachyptila desolata compared with Pterodroma cervicalis

Side-by-Side Comparison

Attribute Antarctic Prion White-necked Petrel
Scientific Name Pachyptila desolata Pterodroma cervicalis
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Vulnerable
Length — —
Wingspan 36.5 cm (14.4 in) 58.4 cm (23.0 in)
Weight 149.0 g (5.26 oz) 462.5 g (16.31 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Antarctic Prion only

White-necked Petrel only

None

Conservation Status

Least Concern

Antarctic Prion

Vulnerable

White-necked 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-necked Petrel

43 cm. Large gadfly petrel; dark above with white hindneck collar; white underparts with dark carpal bar. Breeds Kermadec and Phillip islands (Norfolk). Vulnerable; ranges in southwestern Pacific. Nocturnal at colonies; feeds on squid and fish.

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