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Side-by-Side Comparison

属性	Eastern Bluebird	White-backed Thrush
学名	Sialia sialis	Turdus kessleri
目	Passeriformes	Passeriformes
科	Turdidae	Turdidae
保全状況	Least Concern	Least Concern
体長	17.5 cm (6.9 in)	—
翼開長	27.0 cm (10.6 in)	29.9 cm (11.8 in)
体重	31.0 g (1.09 oz)	76.3 g (2.69 oz)
食性	Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to …	--
一腹卵数	4-5	3-4
Population Trend	—	—

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Size Comparison

Body Length

Eastern Bluebird 17.5 cm

White-backed Thrush —

翼開長

Eastern Bluebird 27.0 cm

White-backed Thrush 29.9 cm

体重

Eastern Bluebird 31.0 g

White-backed Thrush 76.3 g

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Habitat Comparison

共通生息地

None

Eastern Bluebird only

🌾 Grassland

White-backed Thrush only

🌲 Forest

Eastern Bluebird

Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.

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Song & Call Comparison

Eastern Bluebird

さえずり

A rich, melodious warbled 'chur-wi, tur-a-lee' song. Both sexes sing. Call is a soft, musical 'turee'. Song is gentle and flute-like, suggesting a small thrush. Given from exposed perch.

White-backed Thrush

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Geographic Range & Migration

Eastern Bluebird

Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.

White-backed Thrush

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保全状況

Least Concern

Eastern Bluebird

Least Concern

White-backed Thrush

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How to Tell Them Apart

Eastern Bluebird

羽毛

Males are vivid royal blue above with a rusty-red breast and white belly. Females are grey-blue with a paler rust breast.

くちばし

Short, thin, dark bill

White-backed Thrush

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About These Birds

Eastern Bluebird

北米に生息するヒタキで、青い上面とオレンジ色の胸を持つ。巣箱の設置プログラムにより個体数が回復した。

White-backed Thrush

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Related Comparisons

American Robin vs Eastern Bluebird

same-family

Common Kingfisher vs Eastern Bluebird

look-alike

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