Genus Hierococcyx Hawk-cuckoo
Common Hawk-cuckoo (Hierococcyx varius) Khaeng Krachan NP Thailand
Common Hawk-cuckoo (Hierococcyx varius) Khaeng Krachan NP Thailand
Large Hawk-cuckoo (Hierococcyx sparverioides) Huai Kha Khaeng NWR Thailand
Large Hawk-cuckoo (Hierococcyx sparverioides) Huai Kha Khaeng NWR Thailand