1. The Hollow casque. This is the most prominent features of the Sulu Hornbill. The function of this caqsque is primarly to attract mates.
2. Their two nect verebrate are fused togetter to proved support for the heavy bill and casque
1. The Sulu Hornbill voice is kinda nasal cracking sound, this is to help communicate and call mates
2. Their two nect verebrate are fused togetter to proved support for the heavy bill and casque
1.Sulu hornbills don't need to drink water becuase they get their needed water from the fruits they eat
2. Sulu hornbills have a small gular pouch inside their mouth to carry fruits for their female mates.