Cory's Shearwater vs Heinroth's Shearwater
Calonectris borealis verglichen mit Puffinus heinrothi
Side-by-Side Comparison
| Merkmal | Cory's Shearwater | Heinroth's Shearwater |
|---|---|---|
| Wissenschaftlicher Name | Calonectris borealis | Puffinus heinrothi |
| Ordnung | Procellariiformes | Procellariiformes |
| Familie | Procellariidae | Procellariidae |
| Erhaltungsstatus | Least Concern | Vulnerable |
| Länge | — | — |
| Flügelspannweite | 69,4 cm (27.3 in) | 35,7 cm (14.1 in) |
| Gewicht | 787,5 g (27.78 oz) | 82,0 g (2.89 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1 | -- |
| Population Trend | — | — |
Erhaltungsstatus
Least Concern
Cory's Shearwater
Vulnerable
Heinroth's Shearwater
About These Birds
Cory's Shearwater
46–56 cm, wingspan 112–126 cm. Large shearwater; greyish-brown above with yellowish bill; white below with pale underwing. Breeds Macaronesia (Azores, Canaries, Madeira). Migrates across Atlantic to South Atlantic wintering grounds. Feeds on fish and squid; follows fishing vessels.
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.