The Bird's Life Cycle by Christian
	All birds come from eggs. The eggs are laid by the adult female.  All eggs have everything needed to form a new bird. Eggs have a shell or outer covering. The covering keeps the egg from drying out. It also protects the new bird growing inside. Bird eggs have a hard shell. When the bird has fully developed, it uses an egg tooth to break out of the egg. This is called hatching. Here you can see how a bird hatches. The new hatchling quickly grows into an adult. An adult mating pair can then continue the species by  laying eggs.
	Here are some pictures of different birds and eggs.
Robin eggs	House Finch on a feeder	Red Tailed Hawk