Ivory-billed Coucal vs Sulawesi Cuckoo
Centropus menbeki compared with Cuculus crassirostris
Side-by-Side Comparison
| Attribute | Ivory-billed Coucal | Sulawesi Cuckoo |
|---|---|---|
| Scientific Name | Centropus menbeki | Cuculus crassirostris |
| Order | Cuculiformes | Cuculiformes |
| Family | Cuculidae | Cuculidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 43.6 cm (17.2 in) | 41.2 cm (16.2 in) |
| Weight | 461.25 g (16.27 oz) | 85.0 g (3.00 oz) |
| Diet | -- | -- |
| Clutch Size | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Ivory-billed Coucal
Harsh, far-carrying call with deep quality; resonant rough notes carrying across African lowland forest.
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.
Conservation Status
Ivory-billed Coucal
Sulawesi Cuckoo
How to Tell Them Apart
Ivory-billed Coucal
Sulawesi Cuckoo
Sulawesi Cuckoo: dark gray-brown above; pale below; long dark tail; yellow orbital ring; Sulawesi endemic; larger than most Cuculus
About These Birds
Ivory-billed Coucal
Ivory-billed Coucal (Centropus menbeki) — 60–68 cm. Very large; blackish-brown overall with a pale ivory-coloured heavy bill; long graduated tail. Found in forest and tall secondary growth of New Guinea and Aru Islands. Non-parasitic; builds an enclosed grass nest. Omnivorous; takes large invertebrates, lizards, frogs, and small mammals.
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.