{# ════════════════════════════════════════════════════════════════════════
Song & Call Comparison
════════════════════════════════════════════════════════════════════════ #}
Song & Call Comparison
Black-billed Koel
गीत
Loud, resonant call with musical quality; rich carrying notes given from tall forest tree in Borneo.
Dark Hawk-Cuckoo
गीत
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.
{# ════════════════════════════════════════════════════════════════════════
Geographic Range & Migration
════════════════════════════════════════════════════════════════════════ #}
{# ════════════════════════════════════════════════════════════════════════
Conservation Status Comparison
════════════════════════════════════════════════════════════════════════ #}
संरक्षण स्थिति
Not Evaluated
Black-billed Koel
Least Concern
Dark Hawk-Cuckoo
{# ════════════════════════════════════════════════════════════════════════
Identification Tips — How to Tell Them Apart
════════════════════════════════════════════════════════════════════════ #}
How to Tell Them Apart
Black-billed Koel
पंख
Golden Bronze-cuckoo: golden-bronze iridescence; white barred underparts; golden-green head; bronze sheen; small Pacific cuckoo
Dark Hawk-Cuckoo
पंख
Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph
{# ════════════════════════════════════════════════════════════════════════
About Each Bird (Descriptions)
════════════════════════════════════════════════════════════════════════ #}
Black-billed Koel (Eudynamys melanorhynchus) — 38–44 cm. Male glossy black with a dark bill (unlike related koels with pale bills); female similar to Western Koel female. Endemic to Sulawesi and Sula Islands in Indonesia. Brood parasite; hosts include corvids. Frugivore and insectivore.
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.
{# ════════════════════════════════════════════════════════════════════════
Related Comparisons
════════════════════════════════════════════════════════════════════════ #}
{# ════════════════════════════════════════════════════════════════════════
More Birds in Family
════════════════════════════════════════════════════════════════════════ #}