Global Bird Index - IOC15.1
Palawan Hornbill
English name：Palawan Hornbill
Scientific name：Anthracoceros marchei
Oriental Pied Hornbill
English name：Oriental Pied Hornbill
Scientific name：Anthracoceros albirostris
Malabar Pied Hornbill
English name：Malabar Pied Hornbill
Scientific name：Anthracoceros coronatus
Sulu Hornbill
English name：Sulu Hornbill
Scientific name：Anthracoceros montani
Black Hornbill
English name：Black Hornbill
Scientific name：Anthracoceros malayanus