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Side-by-Side Comparison

属性	Least Auklet	Atlantic Puffin
学名	Aethia pusilla	Fratercula arctica
目	Charadriiformes	Charadriiformes
科	Alcidae	Alcidae
保全状況	Least Concern	Vulnerable
体長	—	30.0 cm (11.8 in)
翼開長	18.9 cm (7.4 in)	56.0 cm (22.0 in)
体重	84.33333333333333 g (2.97 oz)	380.0 g (13.40 oz)
食性	--	Small fish, especially sand eels, herring, and capelin. Dives underwater using wings for propulsion, catching …
一腹卵数	1	1
Population Trend	—	—

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Size Comparison

Body Length

Least Auklet —

Atlantic Puffin 30.0 cm

翼開長

Least Auklet 18.9 cm

Atlantic Puffin 56.0 cm

体重

Least Auklet 84.33333333333333 g

Atlantic Puffin 380.0 g

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Habitat Comparison

共通生息地

🏖️ Coastal

Least Auklet only

None

Atlantic Puffin only

None

Atlantic Puffin

Breeds on grassy cliff tops and offshore islands. Spends winter entirely at sea in the North Atlantic.

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Song & Call Comparison

Least Auklet

Atlantic Puffin

さえずり

At burrow gives a low, moaning 'arr-arr-arr' growl. Silent at sea. At breeding colonies produces a series of grunting croaks. Chicks give soft peeping calls.

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Geographic Range & Migration

Least Auklet

Atlantic Puffin

North Atlantic from eastern Canada and northeastern United States to Iceland, Norway, and northwest Russia.

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保全状況

Least Concern

Least Auklet

Vulnerable

Atlantic Puffin

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How to Tell Them Apart

Least Auklet

Atlantic Puffin

羽毛

Black upperparts and white underparts with a distinctive white face. In breeding season, the face brightens and colourful bill plates develop. Winter plumage is duller with a darker face.

くちばし

Large, laterally compressed, triangular bill — bright orange, blue, and yellow in breeding season

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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.

Atlantic Puffin

「海のピエロ」とも呼ばれるニシツノメドリは、北海の崖に穴を掘って営巣する魅力的な海鳥。口蓋に後ろ向きの棘があるため、一度に12匹もの魚を横向きにくわえて運ぶことができる。気候変動と乱獲による餌不足が脅威となり、個体数が減少している。

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Related Comparisons

Atlantic Puffin vs Barn Owl

look-alike

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