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Song & Call Comparison
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Song & Call Comparison
Cocos Cuckoo
Canto
Loud, resonant melodic call; rich notes building in musical sequence through dense tropical forest. Vocalization pattern typical of this species in its native habitat.
Dark Hawk-Cuckoo
Canto
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.
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Geographic Range & Migration
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Conservation Status Comparison
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Estado de conservação
Vulnerable
Cocos Cuckoo
Least Concern
Dark Hawk-Cuckoo
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Identification Tips — How to Tell Them Apart
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How to Tell Them Apart
Cocos Cuckoo
Plumagem
Black-bellied Cuckoo: rufous above; black belly; white throat; red orbital ring; long rufous tail; yellow-green bill; neotropical
Dark Hawk-Cuckoo
Plumagem
Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph
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About Each Bird (Descriptions)
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Cocos Cuckoo (Coccyzus ferrugineus) — 31–35 cm. Richly rufous-brown above; cinnamon-buff below; graduated tail; yellow lower mandible. Endemic to Cocos Island, Costa Rica (a UNESCO World Heritage Site). Non-parasitic. Insectivore. Vulnerable due to its extremely restricted range and introduced predators.
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.
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Related Comparisons
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More Birds in Family
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