Least Auklet vs Thick-billed Murre

Aethia pusilla 比較対象 Uria lomvia

Side-by-Side Comparison

属性 Least Auklet Thick-billed Murre
学名 Aethia pusilla Uria lomvia
Charadriiformes Charadriiformes
Alcidae Alcidae
保全状況 Least Concern Least Concern
体長
翼開長 18.9 cm (7.4 in) 41.4 cm (16.3 in)
体重 84.33333333333333 g (2.97 oz) 945.75 g (33.36 oz)
食性 -- --
一腹卵数 1 1
Population Trend

Habitat Comparison

共通生息地

Least Auklet only

None

Thick-billed Murre only

None

保全状況

Least Concern

Least Auklet

Least Concern

Thick-billed Murre

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.

Thick-billed Murre

Thick-billed Murre (Brünnich's Guillemot), 39–43 cm, breeds in enormous cliff colonies across the Arctic from Newfoundland to Siberia. Thicker, shorter bill with white gape line. Dives to 200+ m — deepest diver among alcids. Piscivore; takes capelin, cod. Vulnerable to climate change in the High Arctic.

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