Let'ts talk about this enormous, brilliantly colored beak. Averaging around 12-15 cm (4.7-5.9 in), it's about 1/3 of its total length and although it's bill is very large it only weighs a mere 380-500 g (13-18noz). It is actually a spongy, hollow bone covered in keratin, a very light and hard protein.
They are also known as a Rainbow Toucan and are the national bird of Belize. If you ever get the chance to hear one you will never forget the amazing frog-like call that travels up to a mile away, and check out it's feather like tongue!