{# ════════════════════════════════════════════════════════════════════════
Song & Call Comparison
════════════════════════════════════════════════════════════════════════ #}
Song & Call Comparison
Dark Hawk-Cuckoo
Gesang
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.
Large Hawk-Cuckoo
Gesang
Loud, far-carrying call; powerful resonant notes carrying across dense forest in South Asia. Vocalization pattern typical of this species in its native habitat.
{# ════════════════════════════════════════════════════════════════════════
Geographic Range & Migration
════════════════════════════════════════════════════════════════════════ #}
{# ════════════════════════════════════════════════════════════════════════
Conservation Status Comparison
════════════════════════════════════════════════════════════════════════ #}
Erhaltungsstatus
Least Concern
Dark Hawk-Cuckoo
Least Concern
Large Hawk-Cuckoo
{# ════════════════════════════════════════════════════════════════════════
Identification Tips — How to Tell Them Apart
════════════════════════════════════════════════════════════════════════ #}
How to Tell Them Apart
Dark Hawk-Cuckoo
Gefieder
Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph
Large Hawk-Cuckoo
Gefieder
Large Hawk-Cuckoo: gray-brown above; white below with rufous streaking; hawk-like; long tail; yellow eye-ring; large size; streaked
{# ════════════════════════════════════════════════════════════════════════
About Each Bird (Descriptions)
════════════════════════════════════════════════════════════════════════ #}
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.
Large Hawk-Cuckoo (Hierococcyx sparverioides) — 38–42 cm. The largest hawk-cuckoo; grey above; whitish below with heavy rufous streaking; barred tail. Inhabits forest and forest edge from the Himalayas through Southeast Asia and China. Migratory. Brood parasite. Insectivore. Famous for its 'brain-fever' call accelerating to a frenzied pitch.
{# ════════════════════════════════════════════════════════════════════════
Related Comparisons
════════════════════════════════════════════════════════════════════════ #}
{# ════════════════════════════════════════════════════════════════════════
More Birds in Family
════════════════════════════════════════════════════════════════════════ #}