Sulawesi Cuckoo vs Dark Hawk-Cuckoo
Cuculus crassirostris compared with Hierococcyx bocki
Side-by-Side Comparison
| Attribute | Sulawesi Cuckoo | Dark Hawk-Cuckoo |
|---|---|---|
| Scientific Name | Cuculus crassirostris | Hierococcyx bocki |
| Order | Cuculiformes | Cuculiformes |
| Family | Cuculidae | Cuculidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 41.2 cm (16.2 in) | 35.9 cm (14.1 in) |
| Weight | 85.0 g (3.00 oz) | 137.0 g (4.83 oz) |
| Diet | -- | -- |
| Clutch Size | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sulawesi Cuckoo
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
Loud, raucous call with harsh quality; penetrating notes carrying through dense forest in South Asia.
Conservation Status
Sulawesi Cuckoo
Dark Hawk-Cuckoo
How to Tell Them Apart
Sulawesi Cuckoo
Sulawesi Cuckoo: dark gray-brown above; pale below; long dark tail; yellow orbital ring; Sulawesi endemic; larger than most Cuculus
Dark Hawk-Cuckoo
Dark Hawk-Cuckoo: dark brown above; pale below with dense dark barring; hawk-like; long barred tail; yellow orbital ring; dark morph
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.