ASEMBLY BILL IN EDUCATION
In level flight, the Bald Eagle has been recorded at speeds up to 44 miles per hour (70.1 kmp). It can dive (and has been clocked) at speeds of 75 to 100 mph (120.68 to 160.39 kmp). The eagle is capable of riding the thermal air currents in excess of 10000 feet (3048 meters) and can stay aloft doing this for hours at a time.
This species of bird mates for life, and will only seek another mate if their "spouse" dies. They build an "eyrie (also spelled aerie)" in which they incubate their eggs and raise their eaglets until those leave the nest at 12 weekS. An eyrie, or nest, can be built in the tops of giant trees (quite often aspens) or on a ledge of a mountain. The eagles habitually add to their nests until they reach up to 10 feet (2.54 meters) in diameter. The eyries are lined with soft materials such as leaves, feathers, and moss to provide a suitable area for incubating the eggs once the female lays them.