A nesting pair will also build a new nest if they feel threatened.Essentially, it's not totally uncommon for eagles to build more than one nest within their nesting territory.
Use binoculars and spotting scopes for viewing, and keep at a reasonable distance.Disk shaped nests are built on the ground or a tree branch which is nearly level. Over the years, some nests become enormous, as much as 9 feet in diameter, weighing two tons.Bowl shaped nests occur where the tree trunk branches off into smaller upright branches. Bald eagles build their nests in large trees near rivers or coasts. If the nest tree falls or a strong wind blows a nest down, the established pair usually rebuilds at or near the site within a few weeks if it is near the breeding season.Bald eagle disturbance sensitivity chart during the nesting cycle. Eaglets break through the shell by using their egg tooth, a pointed bump on the top of the beak.It can take from twelve to forty-eight hours to hatch after making the first break in the shell (pipping).