Short-tailed Shearwater vs Balearic Shearwater
Ardenna tenuirostris so với Puffinus mauretanicus
Side-by-Side Comparison
| Thuộc Tính | Short-tailed Shearwater | Balearic Shearwater |
|---|---|---|
| Tên Khoa Học | Ardenna tenuirostris | Puffinus mauretanicus |
| Bộ | Procellariiformes | Procellariiformes |
| Họ | Procellariidae | Procellariidae |
| Tình Trạng Bảo Tồn | Least Concern | Critically Endangered |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 52,4 cm (20.6 in) | 48,4 cm (19.1 in) |
| Khối Lượng | 695,0 g (24.52 oz) | 514,8 g (18.16 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Short-tailed Shearwater only
Balearic Shearwater only
Không
Tình Trạng Bảo Tồn
Least Concern
Short-tailed Shearwater
Critically Endangered
Balearic Shearwater
About These Birds
Short-tailed Shearwater
41–43 cm, wingspan 95–100 cm. Sooty-brown; silvery underwing flash. Breeds Bass Strait islands (Australia) in enormous numbers; one of the world's most abundant seabirds. Migrates to North Pacific in vast flocks. Feeds on krill and fish. Harvested sustainably as 'muttonbirds' in Tasmania.
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.