Least Auklet vs Great Auk

Aethia pusilla compared with Pinguinus impennis

Side-by-Side Comparison

Attribute Least Auklet Great Auk
Scientific Name Aethia pusilla Pinguinus impennis
Order Charadriiformes Charadriiformes
Family Alcidae Alcidae
Conservation Status Least Concern Extinct
Length
Wingspan 18.9 cm (7.4 in)
Weight 84.33333333333333 g (2.97 oz) 4750.0 g (167.55 oz)
Diet -- --
Clutch Size 1 1
Population Trend

Habitat Comparison

Shared Habitats

Least Auklet only

None

Great Auk only

None

Conservation Status

Least Concern

Least Auklet

Extinct

Great Auk

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.

Great Auk

Great Auk was the Northern Hemisphere's giant flightless auk, 75–85 cm, hunted to extinction in 1844. The last pair was killed on Eldey Island, Iceland. Black above, white below with a white oval eye patch; vestigial wings. Spent most of its life at sea; bred colonially on Atlantic islands and rocks.

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