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Side-by-Side Comparison

属性	Russet-backed Thrush	Eastern Bluebird
学名	Catharus ustulatus	Sialia sialis
目	Passeriformes	Passeriformes
科	Turdidae	Turdidae
保护状况	Least Concern	Least Concern
体长	—	17.5 cm (6.9 in)
翼展	19.4 cm (7.6 in)	27.0 cm (10.6 in)
体重	34.05 g (1.20 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	1-5	4-5
Population Trend	—	—

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Size Comparison

Body Length

Russet-backed Thrush —

Eastern Bluebird 17.5 cm

翼展

Russet-backed Thrush 19.4 cm

Eastern Bluebird 27.0 cm

体重

Russet-backed Thrush 34.05 g

Eastern Bluebird 31.0 g

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Habitat Comparison

共同栖息地

无

Russet-backed 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

Russet-backed 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

Russet-backed Thrush

Eastern Bluebird

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

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保护状况

Least Concern

Russet-backed Thrush

Least Concern

Eastern Bluebird

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How to Tell Them Apart

Russet-backed 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

Russet-backed Thrush

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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