 There are five species of red-billed hornbills generally recognized now, but all five were once considered conspecific.Some authorities still categorize the group as "Tockus erythrorhynchus" with the remaining four as its subspecies

Western red-billed hornbills are small hornbills in the genus Tockus.They have curved red beaks which are more orange on the lower beak and more bright red on the upper beak, with both ending with a dark orange colour.