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Side-by-Side Comparison

Attribute	Rufous-winged Ground-cuckoo	Yellow-billed Malkoha
Scientific Name	Neomorphus rufipennis	Rhamphococcyx calyorhynchus
Order	Cuculiformes	Cuculiformes
Family	Cuculidae	Cuculidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	34.1 cm (13.4 in)	35.2 cm (13.9 in)
Weight	381.25 g (13.45 oz)	117.0 g (4.13 oz)
Diet	--	--
Clutch Size	--	--
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🌲 Forest

Rufous-winged Ground-cuckoo only

None

Yellow-billed Malkoha only

None

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Song & Call Comparison

Rufous-winged Ground-cuckoo

Song

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

Yellow-billed Malkoha

Song

Loud, far-carrying plaintive whistle; pure melodic notes audible through open tropical scrub habitat.

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Conservation Status

Least Concern

Rufous-winged Ground-cuckoo

Least Concern

Yellow-billed Malkoha

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How to Tell Them Apart

Rufous-winged Ground-cuckoo

Plumage

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

Yellow-billed Malkoha

Plumage

Reynaud's Coua: gray-brown above; white below with rufous flanks; bare blue facial skin; long dark tail; Madagascar forest endemic

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About These Birds

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.

Yellow-billed Malkoha

Yellow-billed Malkoha (Rhamphococcyx calyorhynchus) — 45–50 cm. Bronze-green above; chestnut-red underparts; yellow bill; bare red orbital skin; long tail. Endemic to Sulawesi and nearby islands in primary and secondary forest. Non-parasitic. Insectivore.

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