Northern Fulmar vs South Georgia Diving-petrel

Fulmarus glacialis compared with Pelecanoides georgicus

Side-by-Side Comparison

Attribute Northern Fulmar South Georgia Diving-petrel
Scientific Name Fulmarus glacialis Pelecanoides georgicus
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Least Concern
Length 47.0 cm (18.5 in)
Wingspan 107.0 cm (42.1 in) 22.6 cm (8.9 in)
Weight 750.0 g (26.46 oz) 129.0 g (4.55 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

Body Length
Northern Fulmar 47.0 cm
South Georgia Diving-petrel
Wingspan
Northern Fulmar 107.0 cm
South Georgia Diving-petrel 22.6 cm
Weight
Northern Fulmar 750.0 g
South Georgia Diving-petrel 129.0 g

Habitat Comparison

Shared Habitats

None

Northern Fulmar only

None

South Georgia Diving-petrel only

Northern Fulmar

Open ocean and sea cliffs. Breeds on cliff ledges and grassy slopes on northern coastlines. Pelagic outside breeding season.

Song & Call Comparison

Northern Fulmar

Song

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.

South Georgia Diving-petrel

Geographic Range & Migration

Northern Fulmar

North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.

South Georgia Diving-petrel

Conservation Status

Least Concern

Northern Fulmar

Least Concern

South Georgia Diving-petrel

How to Tell Them Apart

Northern Fulmar

Bill

Yellowish hooked bill with prominent tubular nostrils on top

South Georgia Diving-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.

South Georgia Diving-petrel

20 cm. Tiny; dark above, white below; paler scapular edges. Breeds South Georgia, Kerguelen, and Heard Island. Extremely abundant; possibly billions of individuals in Southern Ocean. Feeds on euphausiids by diving; sympatric with Common Diving-petrel but smaller with narrower bill.

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