Biak Coucal vs African Emerald Cuckoo

Centropus chalybeus compared with Chrysococcyx cupreus

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Side-by-Side Comparison

Attribute Biak Coucal African Emerald Cuckoo
Scientific Name Centropus chalybeus Chrysococcyx cupreus
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Near Threatened Least Concern
Length
Wingspan 39.1 cm (15.4 in) 21.1 cm (8.3 in)
Weight 244.4 g (8.62 oz) 38.0 g (1.34 oz)
Diet -- --
Clutch Size -- --
Population Trend
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Habitat Comparison

Shared Habitats

None

Biak Coucal only

African Emerald Cuckoo only

None

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Song & Call Comparison

Biak Coucal

Song

Deep, booming resonant call; powerful low notes carrying impressively across African lowland forest floor.

African Emerald Cuckoo

Song

Deep, hollow resonant booming call; powerful low notes carrying far through dense tropical forest. Vocalization pattern typical of this species in its native habitat.

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Conservation Status

Near Threatened

Biak Coucal

Least Concern

African Emerald Cuckoo

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How to Tell Them Apart

Biak Coucal

Plumage

Black-hooded Coucal: black hood contrasting brown mantle; rufous-brown wings; pale buff below; long dark tail; red eye; bold hood

African Emerald Cuckoo

Plumage

New Caledonian Bronze-cuckoo: bronze-green above; barred white below; island endemic; red eye; iridescent bronze-green; small size

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About These Birds

Biak Coucal

Biak Coucal (Centropus chalybeus) — 42–48 cm. Glossy blue-black above; chestnut-rufous wings; pale buff underparts; heavy bill. Endemic to Biak Island, Irian Jaya, Indonesia. Inhabits lowland and foothill forest. Non-parasitic. Omnivore. Listed as Vulnerable due to its very restricted island range and ongoing habitat degradation.

African Emerald Cuckoo

African Emerald Cuckoo (Chrysococcyx cupreus) — 20–22 cm. Male: dazzling emerald green above and on breast; yellow belly; red bill. Female: bronze-green above; rufous-barred below. Inhabits primary forest and dense secondary growth across West and Central Africa. Brood parasite targeting sunbirds and other small passerines. Insectivore.

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