HDOnTap is energized to announce the 2020-2021 period start of the Hanover, PA Bald Eagle nest cams! Live Hanover, Pennsylvania Bald Eagle Nest! The bald eagle is the only eagle special to North America and about 50 % of the bald eagle populace lives in Alaska. Adult plumage develops when a bald eagle come to be sexually mature it normally takes five many years for a bald eagle to achieve strong white head and tail feathers.