The younger one does it's best to imitate the older one, and has learned to fly also, but just barely. It can fly up to the rim of the blue box they live in:
Here they are with their surrogate mom (me):
They stretch their wings and legs in the big wide world, a.k.a. the back porch:
I still see "Mutt & Jeff" whenever I look at them together.
Related Link:
Farm Report: The Weekly Chick Pic