Herald Petrel vs Atlantic Petrel
Pterodroma heraldica compared with Pterodroma incerta
Side-by-Side Comparison
| Attribute | Herald Petrel | Atlantic Petrel |
|---|---|---|
| Scientific Name | Pterodroma heraldica | Pterodroma incerta |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Endangered |
| Length | — | — |
| Wingspan | 56.2 cm (22.1 in) | 63.6 cm (25.0 in) |
| Weight | 278.5 g (9.82 oz) | 515.0 g (18.17 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Herald Petrel
Endangered
Atlantic Petrel
About These Birds
Herald Petrel
37 cm. Polymorphic petrel; pale morph has white underparts with dark M-mark and partial collar; dark morph sooty brown. Breeds widely across central and south Pacific islands. Ranges in tropical Pacific; feeds on squid and fish. Closely related to Kermadec Petrel.
Atlantic Petrel
43 cm, wingspan 104 cm. Large; dark brown above with pale belly and dusky breast-band creating hooded appearance. Breeds Tristan da Cunha and Gough Island; ranges into south Atlantic and Indian Ocean. Endangered; threatened by introduced predators and longline fisheries.