Rangkong (Hornbills)
Helmeted Hornbill
Rhinoplax vigil
- mistis
- 32 km/h
- Kritis
Rams other hornbills in mid-air headfirst. Solid ivory casque. Critically endangered battering ram.
- Populasi
- Not numerically quantified; population confirmed decreasing dramatically (projected extremely rapid decline over three generations, driven ~28.7% by habitat loss plus poaching pressure)
- Habitat
- Primary semi-evergreen and evergreen lowland and hill forest with closed canopy, from lowlands up to about 1,500 m elevation; strongly favors rugged, hilly terrain and large (>10,000 ha) undisturbed forest tracts, avoiding degraded/logged habitat
- Fakta menarik
- The Helmeted Hornbill is unique among hornbills for having an almost solid keratin casque (~11% of its ~3 kg body weight) that males use to ram each other in mid-air jousting duels over fruiting fig trees — this "hornbill ivory" casque is precisely why the species has collapsed to Critically Endangered, poached for the illegal Chinese carving trade.
- Sebaran
- Sundaic lowlands of Southeast Asia: peninsular Myanmar, peninsular Thailand, peninsular Malaysia, Singapore, Brunei, and Sumatra/Borneo (Indonesia); extent of occurrence approximately 3,570,000 km²
- Makanan
- Primarily fruit, especially strangler fig (Ficus) fruits, supplemented by small animals such as insects, small reptiles, and birds
- Ukuran
- 1,65 m
- Masa hidup
- 9,5 tahun
