Townsend's Shearwater vs Antarctic Petrel
Puffinus auricularis مقارنةً بـ Thalassoica antarctica
Side-by-Side Comparison
| السمة | Townsend's Shearwater | Antarctic Petrel |
|---|---|---|
| الاسم العلمي | Puffinus auricularis | Thalassoica antarctica |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Procellariidae | Procellariidae |
| حالة الحفاظ | Critically Endangered | Least Concern |
| الطول | — | — |
| طول الجناح | 44,0 cm (17.3 in) | 59,2 cm (23.3 in) |
| الوزن | 324,0 g (11.43 oz) | 658,3333333333334 g (23.22 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
حالة الحفاظ
Critically Endangered
Townsend's Shearwater
Least Concern
Antarctic Petrel
About These Birds
Townsend's Shearwater
33–35 cm. Dark above; white below with dark vent and undertail. Breeds Revillagigedo Islands (Mexico); Critically Endangered with fewer than 1,000 pairs. Threatened by introduced cats and rats; strictly nocturnal at colonies. Ranges in eastern Pacific.
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.