Black-billed koel

The black-billed koel (Eudynamys melanorhynchus) is a species of cuckoo in the family Cuculidae. It is endemic to forest and woodland on the Indonesian islands of Sulawesi, Sula, Banggai, Togian and other smaller nearby islands. It has often been considered conspecific with E. scolopaceus, but they are increasingly treated as separate species. Unlike the black-billed koel, all other members of the common koel complex have a pale bill. The black billed koel voice a typical "koel!" call, or a short series of rising and falling "woo" notes.

Black-billed koel
Eudynamys melanorhynchus skeleton
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Cuculiformes
Family:	Cuculidae
Genus:	Eudynamys
Species:	E. melanorhynchus
Binomial name
Eudynamys melanorhynchus Müller, 1843
Synonyms
Eudynamys melanorhyncha

The IUCN regards E. melanorhynchus as a synonym of E. orientalis,^[1] whereas the International Ornithologists' Union regards it as a valid species.^[2]