Westland Petrel vs Balearic Shearwater
Procellaria westlandica compared with Puffinus mauretanicus
Side-by-Side Comparison
| Attribute | Westland Petrel | Balearic Shearwater |
|---|---|---|
| Scientific Name | Procellaria westlandica | Puffinus mauretanicus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Endangered | Critically Endangered |
| Length | — | — |
| Wingspan | 73.8 cm (29.1 in) | 48.4 cm (19.1 in) |
| Weight | 1111.5 g (39.21 oz) | 514.8 g (18.16 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Endangered
Westland Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Westland Petrel
51 cm. Large all-black petrel; pale yellowish bill with dark culmen. Breeds only in inland forests of Westland, South Island, New Zealand. Vulnerable; the only procellariid nesting in inland forest. Migrates to southern Pacific; feeds on squid and fish.
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.