Atlantic Puffin vs Blue Jay
Fratercula arctica 比較対象 Cyanocitta cristata
Side-by-Side Comparison
| 属性 | Atlantic Puffin | Blue Jay |
|---|---|---|
| 学名 | Fratercula arctica | Cyanocitta cristata |
| 目 | Charadriiformes | Passeriformes |
| 科 | Alcidae | Corvidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | 30.0 cm (11.8 in) | 28.0 cm (11.0 in) |
| 翼開長 | 56.0 cm (22.0 in) | 42.0 cm (16.5 in) |
| 体重 | 380.0 g (13.40 oz) | 87.0 g (3.07 oz) |
| 食性 | Small fish, especially sand eels, herring, and capelin. Dives underwater using wings for propulsion, catching … | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … |
| 一腹卵数 | 1 | 2-7 |
| 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.
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
Song & Call Comparison
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.
Blue Jay
A harsh, ringing 'jaay-jaay-jaay'. Also mimics Red-tailed Hawk and other species convincingly. Gives soft, liquid 'bell' calls and gurgling whispers in flocks.
Geographic Range & Migration
Atlantic Puffin
North Atlantic from eastern Canada and northeastern United States to Iceland, Norway, and northwest Russia.
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
保全状況
Atlantic Puffin
Blue Jay
How to Tell Them Apart
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
Blue Jay
Bright blue upperparts with black barring on the wings and tail. White face and underparts with a black necklace. Prominent blue crest.
Stout, straight black bill
About These Birds
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。
Blue Jay
アオカケスは鮮やかな羽毛と大きな鳴き声で知られるカラス科の大胆で知能が高い鳥。アオカケスは毎秋数千個のドングリを蓄えることでカシの木の重要な散布者となっている。複雑な社会的行動には、給餌器から他の鳥を追い払うためにタカの声を真似ることも含まれる。