Dark Hawk-cuckoo

The Dark Hawk-cuckoo Hierococcyx bocki was previously considered as a race of the Large Hawk-cuckoo.  Locally common in hill and montane habitat (Mt. Kinabalu, Rafflesia F.R.), it will be easier to find the bird if you could familiarised yourself with the call, a repeated two note whistle with a longer second note.  Enjoy.