Hornbills, facts and photos
Weight: What is a hornbill? Hornbills are tropical birds named for their unusually large, curved bills, some of which are adorned with a large casque, a hollow structure made from keratin. Casques, which vary in size and color, serve a number of functions, such as attracting mates and resonating sound, making the birds’ territorial calls more audible. Casques may also provide support when the birds use their beaks to peel off tree bark or dig in soil for insects. Some hornbill species don’t have casques, such as the red-billed hornbill, which was the model for the character Zazu in The ...