Mascarene Petrel vs Heinroth's Shearwater
Pseudobulweria aterrima compared with Puffinus heinrothi
Side-by-Side Comparison
| Attribute | Mascarene Petrel | Heinroth's Shearwater |
|---|---|---|
| Scientific Name | Pseudobulweria aterrima | Puffinus heinrothi |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Critically Endangered | Vulnerable |
| Length | — | — |
| Wingspan | 50.6 cm (19.9 in) | 35.7 cm (14.1 in) |
| Weight | 220.66666666666666 g (7.78 oz) | 82.0 g (2.89 oz) |
| Diet | -- | -- |
| Clutch Size | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Critically Endangered
Mascarene Petrel
Vulnerable
Heinroth's Shearwater
About These Birds
Mascarene Petrel
35–36 cm. All-black petrel with hooked bill. Critically Endangered; breeds only Réunion Island; fewer than 250 adults estimated. One of the rarest seabirds. Threatened by introduced predators and light attraction; known mainly from bones and very occasional sightings at sea.
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.