I’m not sure which one of this pair actually took the flight; it was about five minutes after this first image that I noticed that one of them was gone.
The one left behind definitely noticed. “Hey, where’d my brother go?”
Not far as it turns out, on that first hop.
Oooh, that was fun!
Now what do I do?
He eventually made his way to the top of this branch and took off, After circling around the back side of the island he returned to the nest, a real flight!