Henderson Petrel vs Balearic Shearwater
Pterodroma atrata 对比 Puffinus mauretanicus
Side-by-Side Comparison
| 属性 | Henderson Petrel | Balearic Shearwater |
|---|---|---|
| 学名 | Pterodroma atrata | Puffinus mauretanicus |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Endangered | Critically Endangered |
| 体长 | — | — |
| 翼展 | 59.0 cm (23.2 in) | 48.4 cm (19.1 in) |
| 体重 | 320.0 g (11.29 oz) | 514.8 g (18.16 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Endangered
Henderson Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Henderson Petrel
36–38 cm. All-dark gadfly petrel; sooty-brown with slightly paler primary patch below. Breeds Henderson Island (Pitcairn Islands). Endangered; population estimated at 5,000–10,000 pairs but vulnerable to introduced rats. Ranges in South Pacific; feeds at night on squid.
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.