Black-eared Cuckoo vs Rufous-winged Ground-cuckoo

Chalcites osculans compared with Neomorphus rufipennis

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Side-by-Side Comparison

Attribute Black-eared Cuckoo Rufous-winged Ground-cuckoo
Scientific Name Chalcites osculans Neomorphus rufipennis
Order Cuculiformes Cuculiformes
Family Cuculidae Cuculidae
Conservation Status Least Concern Least Concern
Length
Wingspan 23.0 cm (9.1 in) 34.1 cm (13.4 in)
Weight 32.0 g (1.13 oz) 381.25 g (13.45 oz)
Diet -- --
Clutch Size -- --
Population Trend
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Habitat Comparison

Shared Habitats

Black-eared Cuckoo only

None

Rufous-winged Ground-cuckoo only

None

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Song & Call Comparison

Black-eared Cuckoo

Song

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

Black-eared Cuckoo

Least Concern

Rufous-winged Ground-cuckoo

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How to Tell Them Apart

Black-eared Cuckoo

Plumage

Horsfield's Bronze-cuckoo (alt): bronze-green above; narrow white bars below; incomplete barring; reddish eye; typical Australian

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

Black-eared Cuckoo

Black-eared Cuckoo (Chalcites osculans) — 18–20 cm. Brown above with bronzy wash; distinctive black ear-patch; pale buff underparts with faint barring; white supercilium. Inhabits arid and semi-arid scrubland and mulga of inland Australia. Brood parasite targeting speckled warblers and other scrub-dwelling hosts. 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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