Townsend's Shearwater vs Heinroth's Shearwater
Puffinus auricularis से तुलना Puffinus heinrothi
Side-by-Side Comparison
| विशेषता | Townsend's Shearwater | Heinroth's Shearwater |
|---|---|---|
| वैज्ञानिक नाम | Puffinus auricularis | Puffinus heinrothi |
| गण | Procellariiformes | Procellariiformes |
| कुल | Procellariidae | Procellariidae |
| संरक्षण स्थिति | Critically Endangered | Vulnerable |
| लंबाई | — | — |
| पंखों का फैलाव | 44.0 cm (17.3 in) | 35.7 cm (14.1 in) |
| वजन | 324.0 g (11.43 oz) | 82.0 g (2.89 oz) |
| आहार | -- | -- |
| अंडों की संख्या | 1 | -- |
| Population Trend | — | — |
संरक्षण स्थिति
Critically Endangered
Townsend's Shearwater
Vulnerable
Heinroth's Shearwater
About These Birds
Townsend's Shearwater
33–35 cm. Dark above; white below with dark vent and undertail. Breeds Revillagigedo Islands (Mexico); Critically Endangered with fewer than 1,000 pairs. Threatened by introduced cats and rats; strictly nocturnal at colonies. Ranges in eastern Pacific.
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.