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Side-by-Side Comparison

属性	Bicknell's Thrush	Eastern Bluebird
学名	Catharus bicknelli	Sialia sialis
目	Passeriformes	Passeriformes
科	Turdidae	Turdidae
保护状况	Vulnerable	Least Concern
体长	—	17.5 cm (6.9 in)
翼展	18.2 cm (7.2 in)	27.0 cm (10.6 in)
体重	27.583333333333332 g (0.97 oz)	31.0 g (1.09 oz)
食性	--	Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to …
产卵数	3-4	4-5
Population Trend	—	—

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Size Comparison

Body Length

Bicknell's Thrush —

Eastern Bluebird 17.5 cm

翼展

Bicknell's Thrush 18.2 cm

Eastern Bluebird 27.0 cm

体重

Bicknell's Thrush 27.583333333333332 g

Eastern Bluebird 31.0 g

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Habitat Comparison

共同栖息地

无

Bicknell's Thrush only

🌲 Forest

Eastern Bluebird only

🌾 Grassland

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

Bicknell's Thrush

Eastern Bluebird

鸣唱

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.

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Geographic Range & Migration

Bicknell's Thrush

Eastern Bluebird

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

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保护状况

Vulnerable

Bicknell's Thrush

Least Concern

Eastern Bluebird

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How to Tell Them Apart

Bicknell's Thrush

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.

喙

Short, thin, dark bill

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About These Birds

Bicknell's Thrush

比克内尔夜鸫，易危，分布于美国东北部和加拿大茂密山地云杉-冷杉林，越冬于加勒比海和伊斯帕尼奥拉岛。

Eastern Bluebird

北美幸福的象征。通过安装巢箱使种群得以恢复。冬季形成松散群体。

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Related Comparisons

American Robin vs Eastern Bluebird

same-family

Common Kingfisher vs Eastern Bluebird

look-alike

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