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Side-by-Side Comparison

السمة	Eastern Koel	Dark Hawk-Cuckoo
الاسم العلمي	Eudynamys orientalis	Hierococcyx bocki
الرتبة	Cuculiformes	Cuculiformes
الفصيلة	Cuculidae	Cuculidae
حالة الحفاظ	Least Concern	Least Concern
الطول	—	—
طول الجناح	42,0 cm (16.5 in)	35,9 cm (14.1 in)
الوزن	239,33333333333334 g (8.44 oz)	137,0 g (4.83 oz)
النظام الغذائي	--	--
عدد البيض في الوضع	1	--
Population Trend	—	—

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Habitat Comparison

الموائل المشتركة

🌲 Forest

Eastern Koel only

بلا

Dark Hawk-Cuckoo only

بلا

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Song & Call Comparison

Eastern Koel

الغناء

Loud, far-carrying resonant call; deep musical notes audible through dense tropical forest in Sumatra.

Dark Hawk-Cuckoo

الغناء

Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.

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حالة الحفاظ

Least Concern

Eastern Koel

Least Concern

Dark Hawk-Cuckoo

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How to Tell Them Apart

Eastern Koel

الريش

Rufous-throated Bronze-cuckoo: rufous throat contrasting bronze-green above; barred white below; small; distinctive rufous throat

Dark Hawk-Cuckoo

الريش

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 These Birds

Eastern Koel

Eastern Koel (Eudynamys orientalis) — 38–46 cm. Male glossy black; female brown with heavy spotting; pale green bill; red eye; long tail. Ranges across Southeast Asia, New Guinea, and Australia; migrates to Australia in spring. Brood parasite targeting magpies and friarbirds. Frugivore; disperses rainforest seeds.

Dark Hawk-Cuckoo

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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More Birds to Explore

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Guira Cuckoo Guira guira Western Koel Eudynamys scolopaceus Whistling Hawk-Cuckoo Hierococcyx nisicolor White-browed Coucal Centropus superciliosus All Cuculidae birds →

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