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Side-by-Side Comparison

Attribute	Hispaniolan Lizard-cuckoo	Dark Hawk-Cuckoo
Scientific Name	Coccyzus longirostris	Hierococcyx bocki
Order	Cuculiformes	Cuculiformes
Family	Cuculidae	Cuculidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	27.2 cm (10.7 in)	35.9 cm (14.1 in)
Weight	101.93333333333332 g (3.60 oz)	137.0 g (4.83 oz)
Diet	--	--
Clutch Size	2-3	--
Population Trend	—	—

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Habitat Comparison

Shared Habitats

None

Hispaniolan Lizard-cuckoo only

None

Dark Hawk-Cuckoo only

🌲 Forest

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Song & Call Comparison

Hispaniolan Lizard-cuckoo

Song

Loud, far-carrying resonant call; deep hollow notes given repeatedly from dense forest in Southeast Asia.

Dark Hawk-Cuckoo

Song

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

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Conservation Status

Least Concern

Hispaniolan Lizard-cuckoo

Least Concern

Dark Hawk-Cuckoo

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How to Tell Them Apart

Hispaniolan Lizard-cuckoo

Plumage

Asian Koel: males glossy blue-black; females dark brown with white barring; red eye; long graduated tail; strongly sexually dimorphic

Dark Hawk-Cuckoo

Plumage

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

Hispaniolan Lizard-cuckoo

Hispaniolan Lizard-cuckoo (Coccyzus longirostris) — 38–43 cm. Brown above; pale buff below; decurved bill; bare red orbital skin; long white-spotted tail. Endemic to Hispaniola (Haiti and Dominican Republic) in forest and scrub. Non-parasitic; specialised lizard predator. Also takes insects and small vertebrates.

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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