Least Auklet vs Marbled Murrelet

Aethia pusilla compared with Brachyramphus marmoratus

Side-by-Side Comparison

Attribute Least Auklet Marbled Murrelet
Scientific Name Aethia pusilla Brachyramphus marmoratus
Order Charadriiformes Charadriiformes
Family Alcidae Alcidae
Conservation Status Least Concern Endangered
Length — —
Wingspan 18.9 cm (7.4 in) 24.7 cm (9.7 in)
Weight 84.33333333333333 g (2.97 oz) 215.98333333333335 g (7.62 oz)
Diet -- --
Clutch Size 1 1
Population Trend — —

Habitat Comparison

Shared Habitats

Least Auklet only

None

Marbled Murrelet only

Conservation Status

Least Concern

Least Auklet

Endangered

Marbled Murrelet

About These Birds

Least Auklet

Least Auklet, 15–16 cm, is the smallest auk, breeding in immense colonies (millions) on rocky Aleutian and Bering Sea islands. Dark above, streaked white below; a tiny white plume above the eye. Planktivore; sieves copepods and euphausiids at sea. Makes loud buzzing display choruses at colony.

Marbled Murrelet

Marbled Murrelet, 24–25 cm, nests on the mossy branches of old-growth forest in western North America — one of the few seabirds to nest miles inland without excavating a burrow. Threatened; dependent on old-growth Douglas-fir and redwood. Piscivore; dives for sand lance near shore. Endangered.

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