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Side-by-Side Comparison

السمة	Biak Coucal	Rufous-winged Ground-cuckoo
الاسم العلمي	Centropus chalybeus	Neomorphus rufipennis
الرتبة	Cuculiformes	Cuculiformes
الفصيلة	Cuculidae	Cuculidae
حالة الحفاظ	Near Threatened	Least Concern
الطول	—	—
طول الجناح	39,1 cm (15.4 in)	34,1 cm (13.4 in)
الوزن	244,4 g (8.62 oz)	381,25 g (13.45 oz)
النظام الغذائي	--	--
عدد البيض في الوضع	--	--
Population Trend	—	—

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Habitat Comparison

الموائل المشتركة

🌲 Forest

Biak Coucal only

بلا

Rufous-winged Ground-cuckoo only

بلا

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Song & Call Comparison

Biak Coucal

الغناء

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

Rufous-winged Ground-cuckoo

الغناء

Deep, hollow resonant call; powerful low-frequency sound carrying across dense lowland tropical forest floor.

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حالة الحفاظ

Near Threatened

Biak Coucal

Least Concern

Rufous-winged Ground-cuckoo

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How to Tell Them Apart

Biak Coucal

الريش

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

Rufous-winged Ground-cuckoo

الريش

Pheasant Coucal: dark glossy black head and body; rufous-brown wings; strongly barred dark tail; reddish eye; terrestrial habits

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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.

Rufous-winged Ground-cuckoo

Rufous-winged Ground-cuckoo (Neomorphus rufipennis) — 46–50 cm. Bronze-green above; rufous wing panels; pale buff below. Found in humid forest of Venezuela, Guyana, and northern Brazil. Non-parasitic; follows army ants. Insectivore and small vertebrate predator. Rarely encountered; Near Threatened.

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