Northern Fulmar vs Masatierra Petrel
Fulmarus glacialis compared with Pterodroma defilippiana
Side-by-Side Comparison
| Attribute | Northern Fulmar | Masatierra Petrel |
|---|---|---|
| Scientific Name | Fulmarus glacialis | Pterodroma defilippiana |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Vulnerable |
| Length | 47.0 cm (18.5 in) | — |
| Wingspan | 107.0 cm (42.1 in) | 45.2 cm (17.8 in) |
| Weight | 750.0 g (26.46 oz) | 173.83333333333334 g (6.13 oz) |
| Diet | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Size Comparison
Song & Call Comparison
Northern Fulmar
A nasal, cackling 'kak-kak-kak-kak' or grunting 'uh-uh-uh' at the nest and colony. Less melodic than petrels. In flight gives occasional single nasal calls.
Masatierra Petrel
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Masatierra Petrel
Conservation Status
Northern Fulmar
Masatierra Petrel
How to Tell Them Apart
Northern Fulmar
Yellowish hooked bill with prominent tubular nostrils on top
Masatierra Petrel
About These Birds
Northern Fulmar
The northern fulmar is a long-lived seabird that can survive over 40 years. It defends its nest by projectile-vomiting a foul-smelling stomach oil at intruders, which can mat the feathers of predators and cause fatal loss of waterproofing. Fulmars have expanded their breeding range dramatically southward over the past two centuries.
Masatierra Petrel
26–28 cm. Small; pale grey above with dark M-mark; white underparts with partial dark collar. Breeds Juan Fernandez and Desventuradas islands off Chile. Vulnerable; small range. Ranges in subtropical southeast Pacific; closely related to Cook's and Pycroft's petrels.