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Song & Call Comparison
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Song & Call Comparison
Dark Hawk-Cuckoo
Song
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.
Red-billed Ground-cuckoo
Song
Loud, harsh cackling call; piercing raucous notes carrying well across tall dense tropical forest habitat.
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Geographic Range & Migration
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Conservation Status Comparison
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Conservation Status
Least Concern
Dark Hawk-Cuckoo
Least Concern
Red-billed Ground-cuckoo
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Identification Tips — How to Tell Them Apart
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How to Tell Them Apart
Dark Hawk-Cuckoo
Plumage
Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph
Red-billed Ground-cuckoo
Plumage
Goliath Coucal: very large; dark brown above; rich rufous wings; pale buff below; long dark tail; red eye; impressive large size
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About Each Bird (Descriptions)
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Dark Hawk-Cuckoo (Hierococcyx bocki) — 28–31 cm. Dark grey above; pale below with darker streaking; barred tail. Restricted to montane forest of the Malay Peninsula. Brood parasite. Insectivore. Rare; poorly documented.
Red-billed Ground-cuckoo (Neomorphus pucheranii) — 46–50 cm. Greenish-brown above; rufous-buff below; bright red decurved bill; bare blue orbital patch. Inhabits dense lowland forest of western Amazonia in Colombia, Ecuador, Peru, and Brazil. Non-parasitic; terrestrial; follows army ants for flushed prey. Insectivore. Secretive and rarely observed.
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Related Comparisons
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More Birds in Family
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