Bucerotidae:

Red-billed Dwarf-, Lophoceros camurus

Crowned Hornbill, Lophoceros alboterminatus Bradfield’s Hornbill, Lophoceros bradfieldi Lophoceros , Lophoceros fasciatus Hemprich’s Hornbill, Lophoceros hemprichii African Gray Hornbill, Lophoceros nasutus Pale-billed Hornbill, Lophoceros pallidirostris Eastern Yellow-billed Hornbill, Tockus flavirostris Southern Yellow-billed Hornbill, Tockus leucomelas Jackson’s Hornbill, Tockus jacksoni Von der Decken’s Hornbill, Tockus deckeni Tockus Monteiro’s Hornbill, Tockus monteiri Damara Red-billed Hornbill, Tockus damarensis Southern Red-billed Hornbill, Tockus rufirostris Northern Red-billed Hornbill, Tockus erythrorhynchus Western Red-billed Hornbill, Tockus kempi Tanzanian Red-billed Hornbill, Tockus ruahae White-, Berenicornis comatus Berenicornis Black Dwarf-Hornbill, Horizocerus hartlaubi Horizocerus White-crested Hornbill, Tropicranus albocristatus Tropicranus Black-casqued Hornbill, atrata Ceratogymna Yellow-casqued Hornbill, Ceratogymna elata Silvery-cheeked Hornbill, Bycanistes brevis Black-and-white-casqued Hornbill, Bycanistes subcylindricus Bycanistes Brown-cheeked Hornbill, Bycanistes cylindricus White-thighed Hornbill, Bycanistes albotibialis , Bycanistes fistulator , Bycanistes bucinator Helmeted Hornbill, Rhinoplax vigil Rhinoplax Rufous Hornbill, Buceros hydrocorax Great Hornbill, Buceros bicornis Buceros Rhinoceros Hornbill, Buceros rhinoceros Bushy-crested Hornbill, galeritus Austen’s Brown-Hornbill, Anorrhinus austeni Anorrhinus Tickell’s Brown-Hornbill, Anorrhinus tickelli Indian Gray-Hornbill, birostris Malabar Gray-Hornbill, Ocyceros griseus Ocyceros Sri Lanka Gray-Hornbill, Ocyceros gingalensis , malayanus , Anthracoceros montani Anthracoceros Malabar Pied-Hornbill, Anthracoceros coronatus Oriental Pied-Hornbill, Anthracoceros albirostris , Anthracoceros marchei Rufous-necked Hornbill, Aceros nipalensis Aceros Knobbed Hornbill, Rhyticeros cassidix Sumba Hornbill, Rhyticeros everetti Rhyticeros Wreathed Hornbill, Rhyticeros undulatus Plain-pouched Hornbill, Rhyticeros subruficollis Blyth’s Hornbill, Rhyticeros plicatus Narcondam Hornbill, Rhyticeros narcondami , Rhabdotorrhinus corrugatus , Rhabdotorrhinus exarhatus Rhabdotorrhinus Walden’s Hornbill, Rhabdotorrhinus waldeni , Rhabdotorrhinus leucocephalus Visayan Hornbill, Penelopides panini Luzon Hornbill, Penelopides manillae Penelopides Mindoro Hornbill, Penelopides mindorensis Samar Hornbill, Penelopides samarensis Mindanao Hornbill, Penelopides affinis

Source: Gonzalez et al. (2013).