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Side-by-Side Comparison

属性	Blue Jay	Banggai Crow
学名	Cyanocitta cristata	Corvus unicolor
目	Passeriformes	Passeriformes
科	Corvidae	Corvidae
保全状況	Least Concern	Critically Endangered
体長	28.0 cm (11.0 in)	—
翼開長	42.0 cm (16.5 in)	40.2 cm (15.8 in)
体重	87.0 g (3.07 oz)	175.0 g (6.17 oz)
食性	Omnivorous — nuts (especially acorns), seeds, berries, insects, and occasionally eggs or nestlings of other …	--
一腹卵数	2-7	1-3
Population Trend	—	—

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Size Comparison

Body Length

Blue Jay 28.0 cm

Banggai Crow —

翼開長

Blue Jay 42.0 cm

Banggai Crow 40.2 cm

体重

Blue Jay 87.0 g

Banggai Crow 175.0 g

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Habitat Comparison

共通生息地

🌲 Forest

Blue Jay only

None

Banggai Crow only

None

Blue Jay

Deciduous and mixed forests, parks, and suburban areas. Highly adaptable to human-modified landscapes.

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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.

Banggai Crow

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Geographic Range & Migration

Blue Jay

Eastern and central North America from southern Canada to the Gulf Coast. Some populations migrate irregularly.

Banggai Crow

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保全状況

Least Concern

Blue Jay

Critically Endangered

Banggai Crow

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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

Banggai Crow

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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。

Banggai Crow

The Banggai Crow is a Critically Endangered corvid of the family Corvidae found only on Peleng Island in Indonesia. Weighing about 175g with a wingspan of 40.2cm, it is a large all-black crow restricted to one of the world's smallest ranges for any corvid. Deforestation and hunting have reduced its population to critically low numbers.

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Related Comparisons

Blue Jay vs Eurasian Magpie

same-family

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Common Raven Corvus corax Palawan Crow Corvus pusillus Ratchet-tailed Treepie Temnurus temnurus Indian Jungle Crow Corvus culminatus All Corvidae birds →

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