 It is the home of birds like the grey imperial pigeon ("Ducula pickeringii"), Philippine cockatoo ("Cacatua haematuropygia"), blue-headed racket-tail ("Prioniturus platenae"), and the Palawan hornbill ("Anthracoceros marchei").The Philippine mouse-deer, a subspecies of the greater mouse-deer ("Tragulus napu") can only be found in this island.The Molbogs, a Muslim ethnolinguistic group, is concentrated in this island.