This is one big bird! Just add water, then watch it hatch and grow! Place the egg in a large container of cool water, making sure the egg is fully submerged. Allow the egg to rest undisturbed for 48 to 72 hours. During this time, the eagle will break out of its shell and begin to grow! Once the eagle has completely broken out of its shell, replace the water with fresh water and watch the him grow and grow. The 2-1/2" tall eagle will grow up to 7"