Bald Eagle nests can reach the size of 5 feet in diameter, and they use the same nest year after year. With time some nests can grow to 9 feet in diameter, weighing two tons. This creature reaches maturity between 4 or 5 years of age, and like many people, this eagle mates for life. If one of the mated birds die then the other will accept a new mate. During their breeding season the Bald Eagle couple protects the nest territory from other eagles or predators.
This type of Eagle lays 1-3 eggs. Bald Eagles lay eggs which are goose shaped eggs. They can only lay one egg per day and it takes up to 35 days for them to hatch. One parent is always on the nest during incubation and they share their responsibility. From when they start building their nest, up to the time the eggs hatch, takes about 20 weeks.
Baby eagles grow really fast. Ten days after hatching the eagle begins flying. 40 percent of baby eagles die when they try to fly. Ten to fifteen weeks after the babies hatch they leave the nest and begin their new life away from home. Bald Eagles can fly up to 30 miles an hour, and live to be about 30 years old.