Red-billed Malkoha (Zanclostomus javanicus) [XC511723]
by Okamoto Keita Sin from Sarawak; Sri Aman Division, Batang Ai National Park, Lubang Baya field station, Malaysia (call, 'chuck' call)
Red-billed Malkoha (Zanclostomus javanicus) [XC245910]
by Greg Irving from Carita, Kabupaten Pandeglang, Banten, Indonesia (call)
Subspecies
Sometimes placed in monospecific genus Zanclostomus.
The following 2 subspecies are recognised:
pallidus Robinson & Kloss, 1921 - Malay Pen., Sumatra and Borneo.
javanicus (Horsfield, 1821) - Southern Myanmar, Malay Peninsula, Greater Sundas and Natuna Is.