Bicknell's Thrush vs Common Blackbird

Catharus bicknelli compared with Turdus merula

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Side-by-Side Comparison

Attribute Bicknell's Thrush Common Blackbird
Scientific Name Catharus bicknelli Turdus merula
Order Passeriformes Passeriformes
Family Turdidae Turdidae
Conservation Status Vulnerable Least Concern
Length 25.0 cm (9.8 in)
Wingspan 18.2 cm (7.2 in) 36.0 cm (14.2 in)
Weight 27.583333333333332 g (0.97 oz) 100.0 g (3.53 oz)
Diet -- Earthworms, insects, berries, and fruit. Forages on the ground, turning over leaf litter. Famously pulls …
Clutch Size 3-4 3-5
Population Trend
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Size Comparison

Body Length
Bicknell's Thrush
Common Blackbird 25.0 cm
Wingspan
Bicknell's Thrush 18.2 cm
Common Blackbird 36.0 cm
Weight
Bicknell's Thrush 27.583333333333332 g
Common Blackbird 100.0 g
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Habitat Comparison

Shared Habitats

Bicknell's Thrush only

None

Common Blackbird only

Common Blackbird

Woodland, hedgerows, gardens, and parks. One of the most common garden birds across Europe.

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Song & Call Comparison

Bicknell's Thrush

Common Blackbird

Song

Arguably Britain's finest songster: rich, flute-like phrases with deep, mellow quality. Sings persistently at dusk. Alarm is a sharp 'chook-chook'. Song includes liquid 'pew' notes.

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Geographic Range & Migration

Bicknell's Thrush

Common Blackbird

Europe, Asia, and North Africa. Introduced to Australia and New Zealand. Northern populations are migratory.

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Conservation Status

Vulnerable

Bicknell's Thrush

Least Concern

Common Blackbird

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How to Tell Them Apart

Bicknell's Thrush

Common Blackbird

Plumage

Males are jet black with a bright yellow-orange bill and eye-ring. Females are dark brown with mottled underparts and a dull yellowish bill.

Bill

Bright yellow-orange bill in males, dull brownish in females

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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.

Common Blackbird

The common blackbird is one of Europe's most familiar and best-loved songbirds, celebrated for its rich, fluting song delivered from rooftop and treetop perches at dawn and dusk. Originally a shy woodland bird, it has colonized urban environments over the past two centuries and become one of the most successful urban adapters.

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Related Comparisons

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