African Emerald Cuckoo vs Black-billed Koel
Chrysococcyx cupreus compared with Eudynamys melanorhynchus
Side-by-Side Comparison
| Attribute | African Emerald Cuckoo | Black-billed Koel |
|---|---|---|
| Scientific Name | Chrysococcyx cupreus | Eudynamys melanorhynchus |
| Order | Cuculiformes | Cuculiformes |
| Family | Cuculidae | Cuculidae |
| Conservation Status | Least Concern | Not Evaluated |
| Length | — | — |
| Wingspan | 21.1 cm (8.3 in) | — |
| Weight | 38.0 g (1.34 oz) | 199.875 g (7.05 oz) |
| Diet | -- | -- |
| Clutch Size | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
African Emerald Cuckoo
Deep, hollow resonant booming call; powerful low notes carrying far through dense tropical forest. Vocalization pattern typical of this species in its native habitat.
Black-billed Koel
Loud, resonant call with musical quality; rich carrying notes given from tall forest tree in Borneo.
Conservation Status
African Emerald Cuckoo
Black-billed Koel
About These Birds
African Emerald Cuckoo
African Emerald Cuckoo (Chrysococcyx cupreus) — 20–22 cm. Male: dazzling emerald green above and on breast; yellow belly; red bill. Female: bronze-green above; rufous-barred below. Inhabits primary forest and dense secondary growth across West and Central Africa. Brood parasite targeting sunbirds and other small passerines. Insectivore.
Black-billed Koel
Black-billed Koel (Eudynamys melanorhynchus) — 38–44 cm. Male glossy black with a dark bill (unlike related koels with pale bills); female similar to Western Koel female. Endemic to Sulawesi and Sula Islands in Indonesia. Brood parasite; hosts include corvids. Frugivore and insectivore.