Love it. It's hard to see on smaller birds but the macaws are pretty amazing to watch fly. Wish he would have elaborated about the contour of the feathers and what function each performs. Knowing all these things with a flighted bird is a must. Even for those members that clip their birds it is beneficial.
The manuvers he is referring to is the issue with house birds being able to fly down when an outside escape happens. They have not practiced these flying skills and have trouble making the decent.
I only have one bird, Korbel, that can back fly. Sam is getting close but not yet.