Dark hawk-cuckoo

The dark hawk-cuckoo (Hierococcyx bocki) is a bird in the family Cuculidae formerly considered conspecific with the large hawk-cuckoo (Hierococcyx sparverioides) and placed in the Cuculus genus.

Geographic Range
In Malaysia it occurs in upper Malaya, northern Sarawak and Sabah. In Indonesia it is found on Sumatra and in Kalimantan. It is also found in Brunei.