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Song & Call Comparison
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Song & Call Comparison
Olive Long-tailed Cuckoo
Song
Loud, far-carrying resonant call; deep hollow notes given repeatedly from dense forest canopy. Vocalization pattern typical of this species in its native habitat.
Western Koel
Song
Loud, far-carrying nasal call; distinctive penetrating notes audible through dense tropical forest. Vocalization pattern typical of this species in its native habitat.
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Geographic Range & Migration
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Conservation Status Comparison
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Conservation Status
Least Concern
Olive Long-tailed Cuckoo
Least Concern
Western Koel
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Identification Tips — How to Tell Them Apart
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How to Tell Them Apart
Olive Long-tailed Cuckoo
Plumage
Olive Long-tailed Cuckoo: olive-brown above; pale buff below; very long graduated dark tail; red eye; olive coloration diagnostic
Western Koel
Plumage
Shining Bronze-cuckoo: brilliant iridescent golden-green above; white barred below; bronze-green head; reddish eye; small size
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About Each Bird (Descriptions)
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Olive Long-tailed Cuckoo (Cercococcyx olivinus) — 28–32 cm. Olive-brown above; pale buff below with faint barring; long tail. Found in montane and submontane forest of West and Central Africa. Brood parasite. Insectivore. Poorly known; locally rare.
Western Koel (Eudynamys scolopaceus) — 39–46 cm. Male glossy black; female brown with white spots and barred underparts; red eye. Widespread from South Asia through mainland Southeast Asia. Brood parasite targeting crows and mynas. Frugivore and insectivore. Its rising wailing call heralds the Indian summer.
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Related Comparisons
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More Birds in Family
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