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Side-by-Side Comparison

Attribute	Banded Bay Cuckoo	Rufous-winged Ground-cuckoo
Scientific Name	Cacomantis sonneratii	Neomorphus rufipennis
Order	Cuculiformes	Cuculiformes
Family	Cuculidae	Cuculidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	21.5 cm (8.5 in)	34.1 cm (13.4 in)
Weight	32.95 g (1.16 oz)	381.25 g (13.45 oz)
Diet	--	--
Clutch Size	--	--
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🌲 Forest

Banded Bay Cuckoo only

None

Rufous-winged Ground-cuckoo only

None

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Song & Call Comparison

Banded Bay Cuckoo

Song

Loud, resonant call with raucous quality; harsh carrying notes given from tropical forest perch. Vocalization pattern typical of this species in its native habitat.

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

Banded Bay Cuckoo

Least Concern

Rufous-winged Ground-cuckoo

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How to Tell Them Apart

Banded Bay Cuckoo

Plumage

Banded Bay Cuckoo: rufous bay-brown above; pale below with dark barring; supercilium; long barred tail; banded underparts pattern

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

Banded Bay Cuckoo

Banded Bay Cuckoo (Cacomantis sonneratii) — 22–25 cm. Brown above with rufous barring; white below with heavy brown barring; yellow orbital ring. Inhabits forest and forest edge from India through Southeast Asia to the Lesser Sundas. Brood parasite targeting warblers and babblers. Insectivore.

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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