Rufous-winged Ground-cuckoo vs Long-tailed Koel

Neomorphus rufipennis compared with Urodynamis taitensis

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Side-by-Side Comparison

Attribute Rufous-winged Ground-cuckoo Long-tailed Koel
Scientific Name Neomorphus rufipennis Urodynamis taitensis
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 34.1 cm (13.4 in) 34.4 cm (13.5 in)
Weight 381.25 g (13.45 oz) 113.5 g (4.00 oz)
Diet -- --
Clutch Size -- --
Population Trend
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Habitat Comparison

Shared Habitats

Rufous-winged Ground-cuckoo only

None

Long-tailed Koel 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.

Long-tailed Koel

Song

Deep, hollow resonant call; powerful low notes carrying through dense tropical forest in Southeast Asia.

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Conservation Status

Least Concern

Rufous-winged Ground-cuckoo

Least Concern

Long-tailed Koel

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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

Long-tailed Koel

Plumage

White-eared Bronze-cuckoo: white ear patch; bronze-green above; barred white below; distinctive white ear spot; small cuckoo

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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.

Long-tailed Koel

Long-tailed Koel (Urodynamis taitensis) — 40–43 cm; tail up to 22 cm. Slender; brown above with white spots; pale underparts with brown streaking; very long pointed tail. Migrates from New Zealand and Pacific islands to Melanesia and Micronesia. Brood parasite targeting reed-warblers. Frugivore and insectivore.

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