Antarctic Prion vs Henderson Petrel
Pachyptila desolata compared with Pterodroma atrata
Side-by-Side Comparison
| Attribute | Antarctic Prion | Henderson Petrel |
|---|---|---|
| Scientific Name | Pachyptila desolata | Pterodroma atrata |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Endangered |
| Length | — | — |
| Wingspan | 36.5 cm (14.4 in) | 59.0 cm (23.2 in) |
| Weight | 149.0 g (5.26 oz) | 320.0 g (11.29 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Antarctic Prion
Endangered
Henderson 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.
Henderson Petrel
36–38 cm. All-dark gadfly petrel; sooty-brown with slightly paler primary patch below. Breeds Henderson Island (Pitcairn Islands). Endangered; population estimated at 5,000–10,000 pairs but vulnerable to introduced rats. Ranges in South Pacific; feeds at night on squid.