Great Shearwater vs Newell's Shearwater
Ardenna gravis مقارنةً بـ Puffinus newelli
Side-by-Side Comparison
| السمة | Great Shearwater | Newell's Shearwater |
|---|---|---|
| الاسم العلمي | Ardenna gravis | Puffinus newelli |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Procellariidae | Procellariidae |
| حالة الحفاظ | Least Concern | Critically Endangered |
| الطول | — | — |
| طول الجناح | 63,6 cm (25.0 in) | 48,2 cm (19.0 in) |
| الوزن | 832,5 g (29.37 oz) | 382,5 g (13.49 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Great Shearwater
Critically Endangered
Newell's Shearwater
About These Birds
Great Shearwater
43–51 cm, wingspan 105–122 cm. Large; dark brown above with white underparts, dark cap, and distinctive scaly pattern on upperwing. Breeds Tristan da Cunha, Gough, and Falklands; migrates to North Atlantic. Feeds on fish and squid; spectacular post-breeding migration past UK coasts.
Newell's Shearwater
33 cm. Dark above; white below with variable dark markings on flanks and vent. Breeds Kauai and possibly other Hawaiian islands. Endangered; threatened by introduced predators, light attraction, and vehicle strikes. Migrates to western Pacific; feeds on fish and squid.