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Side-by-Side Comparison

السمة	Black-billed Cuckoo	Rufous-winged Ground-cuckoo
الاسم العلمي	Coccyzus erythropthalmus	Neomorphus rufipennis
الرتبة	Cuculiformes	Cuculiformes
الفصيلة	Cuculidae	Cuculidae
حالة الحفاظ	Least Concern	Least Concern
الطول	—	—
طول الجناح	27,4 cm (10.8 in)	34,1 cm (13.4 in)
الوزن	53,20000000000001 g (1.88 oz)	381,25 g (13.45 oz)
النظام الغذائي	--	--
عدد البيض في الوضع	2-5	--
Population Trend	—	—

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Habitat Comparison

الموائل المشتركة

🌲 Forest

Black-billed Cuckoo only

بلا

Rufous-winged Ground-cuckoo only

بلا

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Song & Call Comparison

Black-billed Cuckoo

الغناء

Loud, far-carrying resonant call; deep notes audible across dense forest in Asia. Vocalization pattern typical of this species in its native habitat.

Rufous-winged Ground-cuckoo

الغناء

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

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حالة الحفاظ

Least Concern

Black-billed Cuckoo

Least Concern

Rufous-winged Ground-cuckoo

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How to Tell Them Apart

Black-billed Cuckoo

الريش

Gray-capped Cuckoo: gray cap; brown above; pale below; graduated dark tail; South American species; forest cuckoo

Rufous-winged Ground-cuckoo

الريش

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-billed Cuckoo

Black-billed Cuckoo (Coccyzus erythropthalmus) — 26–31 cm. Brown above; white below; all-dark bill; narrow red orbital ring; tail with small white spots. Migratory breeder in eastern North America; winters in South America. Non-parasitic. Insectivore specialising in tent caterpillars and other hairy larvae.

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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More Birds to Explore

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