New Zealand Storm-petrel vs Wilson's Storm-petrel

Fregetta maoriana compared with Oceanites oceanicus

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Side-by-Side Comparison

Attribute New Zealand Storm-petrel Wilson's Storm-petrel
Scientific Name Fregetta maoriana Oceanites oceanicus
Order Procellariiformes Procellariiformes
Family Oceanitidae Oceanitidae
Conservation Status Critically Endangered Least Concern
Length
Wingspan 28.2 cm (11.1 in) 29.4 cm (11.6 in)
Weight 34.75 g (1.23 oz) 37.5 g (1.32 oz)
Diet -- --
Clutch Size 1 1
Population Trend
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Habitat Comparison

Shared Habitats

None

New Zealand Storm-petrel only

Wilson's Storm-petrel only

None

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Conservation Status

Critically Endangered

New Zealand Storm-petrel

Least Concern

Wilson's Storm-petrel

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About These Birds

New Zealand Storm-petrel

New Zealand Storm-petrel, 16–18 cm, was thought extinct for over 150 years until rediscovered in 2003 off the Hauraki Gulf. Breeding colony finally found in 2013 on Little Barrier Island. Dark above, white below with black stripe through belly. Endangered. Planktivore in New Zealand coastal and pelagic waters.

Wilson's Storm-petrel

Wilson's Storm-petrel, 15–19 cm, wingspan 38–42 cm, may be the world's most abundant bird with billions breeding on Antarctic and sub-Antarctic islands. Dark brown with white rump, yellow-webbed feet dangling below body while 'walking' on water surface. Planktivore; skims copepods and krill. Circumglobal migrant.

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