Bill.
The bill is a type of beak on an animal such as a duck or a platypus.
on its beak
Beak.
beak
It has a duck like beak.
A beak or bill
A BEAK :P A BEAK :P
beak
they have a beak and feathers look at www.duckimages.com
Ducks have beaks, because the use their beaks to find and eat food.
The platypus was first thought to be a hoax, comprised of a duck's beak sewn into the body of a beaver.