A team of ornithologists from the National University of Singapore, Birdtour Asia Ltd., and the University of Queensland has described a new and cryptic species of the hawk-cuckoo genus Hierococcyx from Borneo, a large island shared by the Malaysian states of Sabah and Sarawak, the Indonesian state of Kalimantan, and the sultanate Brunei. Breeding range map of Hierococcyx bocki from Sumatra and Peninsular Malaysia, Hierococcyx sp. from Borneo, and...
