Fork-tailed Storm-petrel vs Least Storm-petrel

Hydrobates furcatus compared with Hydrobates microsoma

Side-by-Side Comparison

Attribute Fork-tailed Storm-petrel Least Storm-petrel
Scientific Name Hydrobates furcatus Hydrobates microsoma
Order Procellariiformes Procellariiformes
Family Hydrobatidae Hydrobatidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 31.1 cm (12.2 in) 23.8 cm (9.4 in)
Weight 63.5 g (2.24 oz) 18.0 g (0.63 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

None

Fork-tailed Storm-petrel only

Least Storm-petrel only

None

Conservation Status

Least Concern

Fork-tailed Storm-petrel

Least Concern

Least Storm-petrel

About These Birds

Fork-tailed Storm-petrel

Fork-tailed Storm-petrel, 20–23 cm, is a distinctive pale grey storm-petrel of the North Pacific, breeding on islands from California to Japan. Pale blue-grey body, dark wing tips, forked tail. Unlike most storm-petrels, feeds largely on fish and marine debris rather than zooplankton alone. Winters offshore.

Least Storm-petrel

World's smallest seabird at 13–15 cm. Sooty-black with white rump; short rounded wings. Breeds Baja California islands; ranges offshore in eastern Pacific to Ecuador. Feeds on zooplankton and small fish by pattering on the surface. Nocturnal at breeding colonies; Near Threatened.

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