Least Auklet vs Atlantic Puffin
Aethia pusilla 比較対象 Fratercula arctica
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 | — | — |
Size Comparison
Habitat Comparison
Atlantic Puffin
Breeds on grassy cliff tops and offshore islands. Spends winter entirely at sea in the North Atlantic.
Song & Call Comparison
Least Auklet
Atlantic Puffin
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.
Geographic Range & Migration
Least Auklet
Atlantic Puffin
North Atlantic from eastern Canada and northeastern United States to Iceland, Norway, and northwest Russia.
保全状況
Least Auklet
Atlantic Puffin
How to Tell Them Apart
Least Auklet
Atlantic Puffin
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.
Large, laterally compressed, triangular bill — bright orange, blue, and yellow in breeding season
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。