Chatham Islands Petrel vs Antarctic Petrel
Pterodroma axillaris مقارنةً بـ Thalassoica antarctica
Side-by-Side Comparison
| السمة | Chatham Islands Petrel | Antarctic Petrel |
|---|---|---|
| الاسم العلمي | Pterodroma axillaris | Thalassoica antarctica |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Procellariidae | Procellariidae |
| حالة الحفاظ | Vulnerable | Least Concern |
| الطول | — | — |
| طول الجناح | 42,4 cm (16.7 in) | 59,2 cm (23.3 in) |
| الوزن | 226,25 g (7.98 oz) | 658,3333333333334 g (23.22 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Vulnerable
Chatham Islands Petrel
Least Concern
Antarctic Petrel
About These Birds
Chatham Islands Petrel
30 cm. Small; dark grey above with white forehead and underparts; distinctive black axillaries. Critically Endangered; breeds only South East Island, Chatham Islands (few hundred pairs). Threatened by weka predation; intensive management sustains population. Ranges in temperate 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.