Toucans nest in tree holes.They use their bill to mate, eat, and as defense/weapons. They live in small flocks. The bill of the Toucan is very colorful and that is a distinction that sets it apart from other types of birds. Their bill can be over half of the body size. The look of it is one that makes it appear heavy, but they are actually very light. Toucans vary in size from about 7 inches to a little over two feet, one of them is their beaks, they are curved and large to pick up and eat large prey. Another is their sharpe claws,they have them on each leg, two at the front and two in the back. They use them to grip onto trees (and hop from tree to another.) Finally, The colors of their feathers change in order to blend in with their surroundings.