Antarctic Prion vs Grey-faced Petrel

Pachyptila desolata compared with Pterodroma gouldi

Side-by-Side Comparison

Attribute Antarctic Prion Grey-faced Petrel
Scientific Name Pachyptila desolata Pterodroma gouldi
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Least Concern
Length
Wingspan 36.5 cm (14.4 in) 62.6 cm (24.6 in)
Weight 149.0 g (5.26 oz) 632.0 g (22.29 oz)
Diet -- --
Clutch Size 1 1
Population Trend

Habitat Comparison

Shared Habitats

None

Antarctic Prion only

Grey-faced Petrel only

None

Conservation Status

Least Concern

Antarctic Prion

Least Concern

Grey-faced 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.

Grey-faced Petrel

43 cm, wingspan 100–105 cm. Dark brown above with grey-brown face; paler underbody. Closely related to Kerguelen and Great-winged petrels. Breeds on rocky islands off northern New Zealand. Ranges in southwestern Pacific; feeds on squid and fish; visits colonies only at night.

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