Sooty Shearwater vs Balearic Shearwater
Ardenna grisea 对比 Puffinus mauretanicus
Side-by-Side Comparison
| 属性 | Sooty Shearwater | Balearic Shearwater |
|---|---|---|
| 学名 | Ardenna grisea | Puffinus mauretanicus |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Near Threatened | Critically Endangered |
| 体长 | — | — |
| 翼展 | 59.1 cm (23.3 in) | 48.4 cm (19.1 in) |
| 体重 | 814.0 g (28.71 oz) | 514.8 g (18.16 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Sooty Shearwater
Critically Endangered
Balearic Shearwater
About These Birds
Sooty Shearwater
40–51 cm, wingspan 94–110 cm. All dark sooty-brown with silvery-white underwing flash. Breeds New Zealand and southern South America; undertakes one of the longest migrations of any animal to North Pacific and Atlantic. Feeds on fish, squid, and krill. Near Threatened; millions estimated.
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.