Instead of four feet, most birds have two pairs of streamlined limbs that are attached at the shoulders. The two wings are large and well-formed and look like bigappendages attached to the trunk. Each wing has three primary feathers—the main feather on top, next to it a little down and one close to the ground. These primary feathers are hard and strong, with a pointed end that makes them perfect for flying through the air. Next to each primary feather is a secondary feather which helps keep the wing in good shape and assists in flight.
The beaks of birds are specially adapted for eating food on the ground or in water. They are composed of several bone plates that fit together like a jigsaw puzzle and have an opening in the front that allows food to be poured into the mouth. The