New Zealand Storm-petrel vs Black-bellied Storm-petrel

Fregetta maoriana compared with Fregetta tropica

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Side-by-Side Comparison

Attribute New Zealand Storm-petrel Black-bellied Storm-petrel
Scientific Name Fregetta maoriana Fregetta tropica
Order Procellariiformes Procellariiformes
Family Oceanitidae Oceanitidae
Conservation Status Critically Endangered Least Concern
Length
Wingspan 28.2 cm (11.1 in) 32.9 cm (13.0 in)
Weight 34.75 g (1.23 oz) 53.0 g (1.87 oz)
Diet -- --
Clutch Size 1 1
Population Trend
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Habitat Comparison

Shared Habitats

None

New Zealand Storm-petrel only

Black-bellied Storm-petrel only

None

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Conservation Status

Critically Endangered

New Zealand Storm-petrel

Least Concern

Black-bellied 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.

Black-bellied Storm-petrel

Black-bellied Storm-petrel, 19–21 cm, breeds on sub-Antarctic islands and disperses widely across the Southern Ocean. Dark above with white rump; distinctive black streak through the white belly. Patters over wave surfaces picking up plankton. Long-distance pelagic movements after breeding.

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