Adult bald eagles usually weigh between 6 and 8 pounds, though some can reach 14 pounds. Female bald eagles are larger than males, and the bird's wingspan can be from 6 to 8 feet.
Adult bald eagle bodies are about 3 to 3.5 feet long. This is one of the largest species of flying birds in the world, and individuals in the wild can live up to 28 years, though in captivity they can live for nearly 50. It takes up to five years for baby bald eagles to reach adult size and lose their baby plumage in favor of the stark white and black coloration of adults.