On average the sea eagle is heaviest in world 15-20 lb and large females can reached 26-28 Does it mean Largest Eagle?

No, the largest eagle in the world is the Steller's sea eagle, which has an average weight range of 15-20 lb. However, the Steller's sea eagle is not the heaviest eagle in the world, as the harpy eagle is heavier. The harpy eagle has an average weight range of 10-25 lb, but large males can reach up to 35 lb.