Galapagos Shearwater vs Antarctic Petrel
Puffinus subalaris compared with Thalassoica antarctica
Side-by-Side Comparison
| Attribute | Galapagos Shearwater | Antarctic Petrel |
|---|---|---|
| Scientific Name | Puffinus subalaris | Thalassoica antarctica |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 37.2 cm (14.6 in) | 59.2 cm (23.3 in) |
| Weight | 176.5 g (6.23 oz) | 658.3333333333334 g (23.22 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Conservation Status
Least Concern
Galapagos Shearwater
Least Concern
Antarctic Petrel
About These Birds
Galapagos Shearwater
27–30 cm. Dark above; white below with grey-brown flanks and vent. Breeds Galapagos Islands (endemic). Ranges in eastern Pacific near the archipelago. Near Threatened; threatened by introduced predators. Feeds on fish near productive Humboldt Current upwellings.
Antarctic Petrel
40–46 cm, wingspan 100–110 cm. Striking chocolate-brown and white pattern; only member of its genus. Breeds solely in Antarctica on cliff ledges; among the most southerly-nesting birds. Feeds on fish and krill beneath pack ice. Returns to colonies in October; one of the most abundant Antarctic seabirds.