What are some of the physical and behavioral changes that occur as Drum, Lady, and Duchess become young peregrine falcons?

By the time the eyases are five weeks old, they've grown as big as Frightful and Chup. They've come to like small game as much as birds. They are also starting to half-jump and partiallly fly small distances. Over time, they begin to fly greater and greater distances, while their mother watches over them.