Antarctic Prion vs MacGillivray's Prion
Pachyptila desolata compared with Pachyptila macgillivrayi
Side-by-Side Comparison
| Attribute | Antarctic Prion | MacGillivray's Prion |
|---|---|---|
| Scientific Name | Pachyptila desolata | Pachyptila macgillivrayi |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Critically Endangered |
| Length | — | — |
| Wingspan | 36.5 cm (14.4 in) | 38.6 cm (15.2 in) |
| Weight | 149.0 g (5.26 oz) | 162.5 g (5.73 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Antarctic Prion
Critically Endangered
MacGillivray's Prion
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.
MacGillivray's Prion
25–27 cm. Medium-billed prion intermediate between Broad-billed and Fairy prions; pale blue-grey with dark M-mark. Breeds St. Paul and Amsterdam islands in southern Indian Ocean. Very restricted range; feeds on zooplankton and small crustaceans at sea surface.