Island Scrub-jay vs Blue Jay
Aphelocoma insularis 比較対象 Cyanocitta cristata
Side-by-Side Comparison
| 属性 | Island Scrub-jay | Blue Jay |
|---|---|---|
| 学名 | Aphelocoma insularis | Cyanocitta cristata |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | 28.0 cm (11.0 in) |
| 翼開長 | — | 42.0 cm (16.5 in) |
| 体重 | 115.75 g (4.08 oz) | 87.0 g (3.07 oz) |
| 食性 | -- | Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other … |
| 一腹卵数 | 2-5 | 2-7 |
| Population Trend | — | — |
Size Comparison
Body Length
Island Scrub-jay
—
Blue Jay
28.0 cm
翼開長
Island Scrub-jay
—
Blue Jay
42.0 cm
体重
Island Scrub-jay
115.75 g
Blue Jay
87.0 g
Habitat Comparison
Blue Jay
Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.
Song & Call Comparison
Island Scrub-jay
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.
Geographic Range & Migration
Island Scrub-jay
Blue Jay
Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.
保全状況
Not Evaluated
Island Scrub-jay
Least Concern
Blue Jay
How to Tell Them Apart
Island Scrub-jay
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
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。