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Side-by-Side Comparison

Attribute	Chattering Yellowbill	Rufous-winged Ground-cuckoo
Scientific Name	Ceuthmochares aereus	Neomorphus rufipennis
Order	Cuculiformes	Cuculiformes
Family	Cuculidae	Cuculidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	23.4 cm (9.2 in)	34.1 cm (13.4 in)
Weight	65.0 g (2.29 oz)	381.25 g (13.45 oz)
Diet	--	--
Clutch Size	2-3	--
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🌲 Forest

Chattering Yellowbill only

None

Rufous-winged Ground-cuckoo only

None

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Song & Call Comparison

Chattering Yellowbill

Song

Loud, resonant call with musical quality; rich clear notes audible through dense humid tropical forest.

Rufous-winged Ground-cuckoo

Song

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

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Conservation Status

Least Concern

Chattering Yellowbill

Least Concern

Rufous-winged Ground-cuckoo

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How to Tell Them Apart

Chattering Yellowbill

Plumage

Verreaux's Coua: rich rufous below; olive-brown above; brilliant blue-green bare facial skin; long white-tipped tail; Madagascar

Rufous-winged Ground-cuckoo

Plumage

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

Chattering Yellowbill

Chattering Yellowbill (Ceuthmochares aereus) — 30–35 cm. Slender; grey above; paler below; vivid yellow bill; long graduated tail. Inhabits dense forest undergrowth across West and Central Africa. Non-parasitic; builds its own nest. Insectivore; gleans caterpillars from leaves. Identified by its loud chattering call.

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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