Long-billed Murrelet vs Black Guillemot

Brachyramphus perdix compared with Cepphus grylle

Side-by-Side Comparison

Attribute Long-billed Murrelet Black Guillemot
Scientific Name Brachyramphus perdix Cepphus grylle
Order Charadriiformes Charadriiformes
Family Alcidae Alcidae
Conservation Status Near Threatened Least Concern
Length
Wingspan 26.9 cm (10.6 in) 30.8 cm (12.1 in)
Weight 308.0 g (10.86 oz) 421.8666666666666 g (14.88 oz)
Diet -- --
Clutch Size 1 1-2
Population Trend

Habitat Comparison

Shared Habitats

Long-billed Murrelet only

None

Black Guillemot only

None

Conservation Status

Near Threatened

Long-billed Murrelet

Least Concern

Black Guillemot

About These Birds

Long-billed Murrelet

Long-billed Murrelet, 26–28 cm, breeds remarkably far inland in old-growth forests of Siberia, nesting directly on mossy tree branches — no burrow. Sea-going for the rest of the year, wintering off eastern Asian coasts. Piscivore; dives for small fish. Near Threatened; nesting ecology unusual for alcids.

Black Guillemot

Black Guillemot, 30–32 cm, is a compact North Atlantic alcid, distinctive in summer: entirely black with bold white wing patches and vivid red feet. Resident on rocky Arctic and boreal shores year-round; does not undertake long pelagic migrations. Dives to 50 m for blennies and sand eels near shore.

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