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Side-by-Side Comparison

Attribute	Javan Cochoa	Common Blackbird
Scientific Name	Cochoa azurea	Turdus merula
Order	Passeriformes	Passeriformes
Family	Turdidae	Turdidae
Conservation Status	Vulnerable	Least Concern
Length	—	25.0 cm (9.8 in)
Wingspan	23.2 cm (9.1 in)	36.0 cm (14.2 in)
Weight	111.5 g (3.93 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	2	3-5
Population Trend	—	—

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Size Comparison

Body Length

Javan Cochoa —

Common Blackbird 25.0 cm

Wingspan

Javan Cochoa 23.2 cm

Common Blackbird 36.0 cm

Weight

Javan Cochoa 111.5 g

Common Blackbird 100.0 g

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Habitat Comparison

Shared Habitats

🌲 Forest

Javan Cochoa only

None

Common Blackbird only

🌾 Grassland

Common Blackbird

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

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Song & Call Comparison

Javan Cochoa

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

Javan Cochoa

Common Blackbird

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

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Conservation Status

Vulnerable

Javan Cochoa

Least Concern

Common Blackbird

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How to Tell Them Apart

Javan Cochoa

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

Javan Cochoa

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

American Robin vs Common Blackbird

same-family

Common Starling vs Common Blackbird

look-alike

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