Blue Jay vs Red-billed Blue Magpie
Cyanocitta cristata 比較対象 Urocissa erythroryncha
Side-by-Side Comparison
| 属性 | Blue Jay | Red-billed Blue Magpie |
|---|---|---|
| 学名 | Cyanocitta cristata | Urocissa erythroryncha |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 28.0 cm (11.0 in) | — |
| 翼開長 | 42.0 cm (16.5 in) | 36.3 cm (14.3 in) |
| 体重 | 87.0 g (3.07 oz) | 150.5 g (5.31 oz) |
| 食性 | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … | -- |
| 一腹卵数 | 2-7 | 3-5 |
| Population Trend | — | — |
Size Comparison
Body Length
Blue Jay
28.0 cm
Red-billed Blue Magpie
—
翼開長
Blue Jay
42.0 cm
Red-billed Blue Magpie
36.3 cm
体重
Blue Jay
87.0 g
Red-billed Blue Magpie
150.5 g
Habitat Comparison
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
Song & Call Comparison
Blue Jay
さえずり
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.
Red-billed Blue Magpie
Geographic Range & Migration
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
Red-billed Blue Magpie
保全状況
Least Concern
Blue Jay
Least Concern
Red-billed Blue Magpie
How to Tell Them Apart
Blue Jay
羽毛
Bright blue upperparts with black barring on the wings and tail. White face and underparts with a black necklace. Prominent blue crest.
くちばし
Stout, straight black bill
Red-billed Blue Magpie
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。