Middle - Female
Down - Male
Have you heard the song, the continuous koo-oooing of the male Asian koel? You may have heard it often enough, but I am pretty sure you can't see it normally, unless you really look for it.
I like to imitiate the song as it sings out its melodious song on a tree somewhere close. Whenever I do so, it will fight back in more rapid songs.
They are the Asian koels. or Eudanamys scolapacea malayana.
Many of you may not know this. They are brooder parasites - meaning they lay their one or rarely two eggs in other bird's nest (usually a crow or mynah). First they throw away the host's eggs. The host bird will then brood their eggs and later raise their nestlings!