Pycroft's Petrel vs Balearic Shearwater
Pterodroma pycrofti compared with Puffinus mauretanicus
Side-by-Side Comparison
| Attribute | Pycroft's Petrel | Balearic Shearwater |
|---|---|---|
| Scientific Name | Pterodroma pycrofti | Puffinus mauretanicus |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Vulnerable | Critically Endangered |
| Length | — | — |
| Wingspan | 42.8 cm (16.9 in) | 48.4 cm (19.1 in) |
| Weight | 156.5 g (5.52 oz) | 514.8 g (18.16 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Vulnerable
Pycroft's Petrel
Critically Endangered
Balearic 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.
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.