The Bald Eagle is generally seen along coasts and large rivers or lakes, where it hunts. Its familiar white head and tail are not gotten until the bird is 4-5 years old; before that, the bird is mostly dark with variable white mottling. Eagles built a large nest of sticks and branches near the top of dead trees. Females are larger than males with a wingspan of 80 inches. (Stokes Essential Pocket Guide to the Birds of North America, 2014)