Blue Jay vs Common Blackbird
Cyanocitta cristata 比較対象 Turdus merula
Side-by-Side Comparison
| 属性 | Blue Jay | Common Blackbird |
|---|---|---|
| 学名 | Cyanocitta cristata | Turdus merula |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Turdidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 28.0 cm (11.0 in) | 25.0 cm (9.8 in) |
| 翼開長 | 42.0 cm (16.5 in) | 36.0 cm (14.2 in) |
| 体重 | 87.0 g (3.07 oz) | 100.0 g (3.53 oz) |
| 食性 | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … | Earthworms, insects, berries, and fruit. Forages on the ground, turning over leaf litter. Famously pulls … |
| 一腹卵数 | 2-7 | 3-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
Common Blackbird
Woodland, hedgerows, gardens, and parks. One of the most common garden birds across Europe.
Song & Call Comparison
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.
Common Blackbird
Arguably Britain's finest songster: rich, flute-like phrases with deep, mellow quality. Sings persistently at dusk. Alarm is a sharp 'chook-chook'. Song includes liquid 'pew' notes.
Geographic Range & Migration
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
Common Blackbird
Europe, Asia, and North Africa. Introduced to Australia and New Zealand. Northern populations are migratory.
保全状況
Blue Jay
Common Blackbird
How to Tell Them Apart
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
Common Blackbird
Males are jet black with a bright yellow-orange bill and eye-ring. Females are dark brown with mottled underparts and a dull yellowish bill.
Bright yellow-orange bill in males, dull brownish in females
About These Birds
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。
Common Blackbird
クロウタドリ（Turdus merula）— ヨーロッパに広く分布するツグミ科の鳥。オスは全身黒く黄色い嘴をもち、メスは茶色。庭園や森林に生息し、美しい歌声をもつ。