Body Feathers are shorter than flight feathers. They are flexible enough that they can be raised to trap air. Down Feathers are under flight and body feathers. They do not have a shaft. They form a soft covering over the bird's skin.
Birds lay eggs.
After they lay the eggs, the female and sometimes the male birds will keep the eggs safe and warm until they hatch. The shell of the egg is hard and brittle. The color of the egg helps to hide it from predators. The egg tooth, which is on the end of the baby bird's beak, falls off after the baby bird has gotten out of the egg shell. Since baby birds are born with no feathers, the parents must feed them until they learn to fly and get food on their own.