Bicknell's Thrush vs Eastern Bluebird

Catharus bicknelli compared with Sialia sialis

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Side-by-Side Comparison

Attribute Bicknell's Thrush Eastern Bluebird
Scientific Name Catharus bicknelli Sialia sialis
Order Passeriformes Passeriformes
Family Turdidae Turdidae
Conservation Status Vulnerable Least Concern
Length 17.5 cm (6.9 in)
Wingspan 18.2 cm (7.2 in) 27.0 cm (10.6 in)
Weight 27.583333333333332 g (0.97 oz) 31.0 g (1.09 oz)
Diet -- Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to …
Clutch Size 3-4 4-5
Population Trend
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Size Comparison

Body Length
Bicknell's Thrush
Eastern Bluebird 17.5 cm
Wingspan
Bicknell's Thrush 18.2 cm
Eastern Bluebird 27.0 cm
Weight
Bicknell's Thrush 27.583333333333332 g
Eastern Bluebird 31.0 g
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Habitat Comparison

Shared Habitats

None

Bicknell's Thrush only

Eastern Bluebird only

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

Song

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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Conservation Status

Vulnerable

Bicknell's Thrush

Least Concern

Eastern Bluebird

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How to Tell Them Apart

Bicknell's Thrush

Eastern Bluebird

Plumage

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

Bill

Short, thin, dark bill

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About These Birds

Bicknell's Thrush

Bicknell's Thrush is a vulnerable, secretive thrush that breeds in dense montane spruce-fir forests in the northeastern United States and adjacent Canada. It has brown upperparts, spotted buff-white underparts, and a faint yellowish base to the lower mandible. It winters in the Caribbean, particularly Hispaniola, where it is threatened by habitat loss at both ends of its migration.

Eastern Bluebird

The eastern bluebird is a beloved symbol of happiness in North America. Once declining due to habitat loss and competition from introduced species, populations recovered dramatically thanks to a massive citizen science nest box campaign. These gentle thrushes form loose winter flocks and huddle together in nest boxes during cold snaps.

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Related Comparisons

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