Blue Jay vs Azure-naped Jay
Cyanocitta cristata 比較対象 Cyanocorax heilprini
Side-by-Side Comparison
| 属性 | Blue Jay | Azure-naped Jay |
|---|---|---|
| 学名 | Cyanocitta cristata | Cyanocorax heilprini |
| 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) | 32.6 cm (12.8 in) |
| 体重 | 87.0 g (3.07 oz) | 183.0 g (6.46 oz) |
| 食性 | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … | -- |
| 一腹卵数 | 2-7 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
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.
Azure-naped Jay
Geographic Range & Migration
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
Azure-naped Jay
保全状況
Blue Jay
Azure-naped Jay
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
Azure-naped Jay
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。
Azure-naped Jay
The Azure-naped Jay is a corvid found in the forest edges and gallery forests of Venezuela and Colombia, weighing about 183g with a wingspan of 32.6cm. It has a distinctive pale azure nape contrasting with darker upperparts. It is a social, noisy species that forages in groups for fruit, insects, and small animals.