Buller's Shearwater vs Balearic Shearwater
Ardenna bulleri so với Puffinus mauretanicus
Side-by-Side Comparison
| Thuộc Tính | Buller's Shearwater | Balearic Shearwater |
|---|---|---|
| Tên Khoa Học | Ardenna bulleri | Puffinus mauretanicus |
| Bộ | Procellariiformes | Procellariiformes |
| Họ | Procellariidae | Procellariidae |
| Tình Trạng Bảo Tồn | Vulnerable | Critically Endangered |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 55,2 cm (21.7 in) | 48,4 cm (19.1 in) |
| Khối Lượng | 388,5 g (13.70 oz) | 514,8 g (18.16 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Vulnerable
Buller's Shearwater
Critically Endangered
Balearic 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.
Balearic Shearwater
30–38 cm. Brown above; variably dirty-white to brown below; often shows brown smudging on flanks. Breeds only Balearic Islands, Spain. Critically Endangered with fewer than 3,000 pairs; faces extinction. Migrates to NE Atlantic; threatened by predators, fishing bycatch, and tourist development.