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Side-by-Side Comparison

Merkmal	White-bellied Storm-petrel	Black-bellied Storm-petrel
Wissenschaftlicher Name	Fregetta grallaria	Fregetta tropica
Ordnung	Procellariiformes	Procellariiformes
Familie	Oceanitidae	Oceanitidae
Erhaltungsstatus	Least Concern	Least Concern
Länge	—	—
Flügelspannweite	33,7 cm (13.3 in)	32,9 cm (13.0 in)
Gewicht	53,9 g (1.90 oz)	53,0 g (1.87 oz)
Ernährung	--	--
Gelegegröße	1	1
Population Trend	—	—

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Habitat Comparison

Gemeinsame Lebensräume

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White-bellied Storm-petrel only

🌾 Grasland

Black-bellied Storm-petrel only

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Erhaltungsstatus

Least Concern

White-bellied Storm-petrel

Least Concern

Black-bellied Storm-petrel

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About These Birds

White-bellied Storm-petrel

White-bellied Storm-petrel, 18–21 cm, breeds on sub-Antarctic and South Atlantic islands; pelagic across the Southern Ocean in winter. White belly contrasts with dark breast band and dark upperparts; pale at base of rump. Planktivore; patters over sea surface. Often seen in the company of Wilson's Storm-petrel.

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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More Birds to Explore

More from Oceanitidae

White-faced Storm-petrel Pelagodroma marina New Zealand Storm-petrel Fregetta maoriana White-vented Storm-petrel Oceanites gracilis Pincoya Storm-petrel Oceanites pincoyae All Oceanitidae birds →

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