Asian Koel
Eudynamys scolopaceus
นกกาเหว่า

The Asian Koel, นกกาเหว่า, is a type of cuckoo found in South Asia, China, and Southeast Asia. The word "Koel" is onomatopoeic in origin and refers to the short vocalization sound of their call. Like many cuckoos, Koels are brood parasites, laying their eggs in the nests of crows which then raise the chicks. (I knew there was some use for a crow.) In my experience, these birds are easy to hear, but hard to see. They are usually far up in the tops of trees and they frequently call into the night. These two males were sparring with each with head bows and a lot of posturing. There was probably a female nearby that they were vying for.