Least Auklet vs Guadalupe Murrelet

Aethia pusilla compared with Synthliboramphus hypoleucus

Side-by-Side Comparison

Attribute Least Auklet Guadalupe Murrelet
Scientific Name Aethia pusilla Synthliboramphus hypoleucus
Order Charadriiformes Charadriiformes
Family Alcidae Alcidae
Conservation Status Least Concern Endangered
Length
Wingspan 18.9 cm (7.4 in) 23.9 cm (9.4 in)
Weight 84.33333333333333 g (2.97 oz) 160.5 g (5.66 oz)
Diet -- --
Clutch Size 1 2
Population Trend

Habitat Comparison

Shared Habitats

Least Auklet only

None

Guadalupe Murrelet only

None

Conservation Status

Least Concern

Least Auklet

Endangered

Guadalupe 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.

Guadalupe Murrelet

Guadalupe Murrelet, 22–24 cm, breeds only on Guadalupe Island off Baja California. Very similar to Scripps's Murrelet but with more extensive white on the face. Critically Endangered; fewer than 1,000 individuals; nesting habitat threatened by feral cats and goats (now being controlled). Piscivore.

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