Henderson Petrel vs Antarctic Petrel
Pterodroma atrata в сравнении с Thalassoica antarctica
Side-by-Side Comparison
| Характеристика | Henderson Petrel | Antarctic Petrel |
|---|---|---|
| Научное название | Pterodroma atrata | Thalassoica antarctica |
| Отряд | Procellariiformes | Procellariiformes |
| Семейство | Procellariidae | Procellariidae |
| Охранный статус | Endangered | Least Concern |
| Длина | — | — |
| Размах крыльев | 59,0 cm (23.2 in) | 59,2 cm (23.3 in) |
| Масса | 320,0 g (11.29 oz) | 658,3333333333334 g (23.22 oz) |
| Питание | -- | -- |
| Размер кладки | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Endangered
Henderson Petrel
Least Concern
Antarctic Petrel
About These Birds
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.
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.