Bald eagles are strong birds and can lift off the ground with a weight of about 1/3 to 1/2 of their body weight. Since adult bald eagles typically weigh between 6.5 to 14 pounds (3 to 6.3 kilograms), this means they can typically carry off prey weighing between 2 to 7 pounds (0.9 to 3.2 kilograms). However, it's important to note that these are average figures and individual eagles may vary somewhat. The ability to lift weight also depends on a variety of factors including the eagle's momentum, wind conditions, and more.