There are about 40 different kinds of toucans, which have the longest bill of any bird in the world in relation to their body size. Large toucans (Ramphastos) are divided into two groups of species, the "croakers" and the "yelpers," based on the quality of their characteristic loud vocalisations. Their bills are made of a type of keratin. Keratin is a protein that is also found in turtle shells, bird feathers and hair. Toucans live in tropical and sub-tropical jungle regions of Central America, the northern areas of South America, and the Caribbean.
See also: Black billed mountain toucan, Channel Billed Toucan, Chestnut-mandibled Toucan, Emerald toucanet, Keel-billed toucan, Red billed toucan, Santa Marta emerald toucanet, Toco Toucan, Yellow throated toucan
