Origin of koel
Examples from the Web for koel
This is a near relative of the Indian koel, which bears remarkable resemblance to an American hawk (Accipiter cooperi).Birds of the Indian Hills|Douglas Dewar
Again, the Indian koel (Eudynamis honorata) certainly migrates.Glimpses of Indian Birds|Douglas Dewar
It is therefore not improbable that in the koel the parasitic habit has an independent origin.
The brain-fever bird and the koel call so seldom in September that their cries, when heard, cause surprise.A Bird Calendar for Northern India|Douglas Dewar
In the same way, most people find the fluty note of the koel less obnoxious than the shriek of the hawk-cuckoo.