Buller's Shearwater vs Great Shearwater
Ardenna bulleri ile kıyaslandığında Ardenna gravis
Side-by-Side Comparison
| Özellik | Buller's Shearwater | Great Shearwater |
|---|---|---|
| Bilimsel Ad | Ardenna bulleri | Ardenna gravis |
| Takım | Procellariiformes | Procellariiformes |
| Familya | Procellariidae | Procellariidae |
| Koruma Durumu | Vulnerable | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 55,2 cm (21.7 in) | 63,6 cm (25.0 in) |
| Ağırlık | 388,5 g (13.70 oz) | 832,5 g (29.37 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Hiçbiri
Buller's Shearwater only
Great Shearwater only
Koruma Durumu
Vulnerable
Buller's Shearwater
Least Concern
Great Shearwater
About These Birds
Buller's Shearwater
46–47 cm, wingspan 96–99 cm. Distinctive; dark above with grey-white M-mark on upperwing; white below with grey cap. Breeds only Snares and Poor Knights Islands, New Zealand. Migrates to North Pacific. Near Threatened; feeds on fish and squid; gregarious at sea.
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.