Pycroft's Petrel vs Heinroth's Shearwater
Pterodroma pycrofti 对比 Puffinus heinrothi
Side-by-Side Comparison
| 属性 | Pycroft's Petrel | Heinroth's Shearwater |
|---|---|---|
| 学名 | Pterodroma pycrofti | Puffinus heinrothi |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Vulnerable | Vulnerable |
| 体长 | — | — |
| 翼展 | 42.8 cm (16.9 in) | 35.7 cm (14.1 in) |
| 体重 | 156.5 g (5.52 oz) | 82.0 g (2.89 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
保护状况
Vulnerable
Pycroft's Petrel
Vulnerable
Heinroth's Shearwater
About These Birds
Pycroft's Petrel
26–28 cm. Small; pale grey above with dark M-mark; white underparts with partial dark collar. Breeds small islands off northern New Zealand (Poor Knights, Hen & Chickens). Vulnerable; migrates to North Pacific. Feeds on squid and fish; nocturnal at colonies; threatened by rats.
Heinroth's Shearwater
27 cm. Small dark shearwater; all sooty-brown with pale bill. Breeds Solomon Islands and Papua New Guinea. Critically Endangered; extremely poorly known with only a handful of records. Breeding biology almost completely unknown; one of the rarest and least-studied seabirds.