We have two small Vari kennels, like for dogs that we put a perch in each and our fids (kids) are in those when we are in motion. When my Gabby was a youngster and I was using a regular small wire cage she did fall and hurt her beak when I stopped short. From then on they ride in their carriers.
Paulsang, you do have one pampered feathered kid or fid as they say. That is an ideal situation and we do have a chair to remove. Problem is we have two parrots that have to have their own space. So they are stuck in less than ideal cages and come out several times a day to play on their individual stands.
Pkunk, Your macaw has a wonderful home on the road. I'm surprised to see the cabinet still in one piece.