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Side-by-Side Comparison

Attribut	Sulawesi Cuckoo	Dark Hawk-Cuckoo
Nom scientifique	Cuculus crassirostris	Hierococcyx bocki
Ordre	Cuculiformes	Cuculiformes
Famille	Cuculidae	Cuculidae
Statut de conservation	Least Concern	Least Concern
Longueur	—	—
Envergure	41,2 cm (16.2 in)	35,9 cm (14.1 in)
Poids	85,0 g (3.00 oz)	137,0 g (4.83 oz)
Régime alimentaire	--	--
Taille de la couvée	--	--
Population Trend	—	—

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Habitat Comparison

Habitats partagés

🌲 Forest

Sulawesi Cuckoo only

Aucun(e)

Dark Hawk-Cuckoo only

Aucun(e)

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Song & Call Comparison

Sulawesi Cuckoo

Chant

Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in Asia. Vocalization pattern typical of this species in its native habitat.

Dark Hawk-Cuckoo

Chant

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

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Statut de conservation

Least Concern

Sulawesi Cuckoo

Least Concern

Dark Hawk-Cuckoo

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How to Tell Them Apart

Sulawesi Cuckoo

Plumage

Sulawesi Cuckoo: dark gray-brown above; pale below; long dark tail; yellow orbital ring; Sulawesi endemic; larger than most Cuculus

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

Sulawesi Cuckoo

Sulawesi Cuckoo (Cuculus crassirostris) — 30–34 cm. Dark grey above; pale below with bold brown-grey barring; heavier bill than most Cuculus. Endemic to Sulawesi in montane forest. Brood parasite. Insectivore. Poorly known.

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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