We moved into a house with really high angled ceilings and haven't seen any crash landings. Are they actually crashing into the walls? Only think we've had issues with is a mirror on the wall in the living room that Huey and Seewee have mistaken for the door to the other section of the house and flew right into it. It now has a blanket on it.
The floors are Travertine.
To me it appears as though they don't know where to land. They can easily do a complete circle back to their cage, but they usually end up crash landing near the windows. Harley attempted to land on the mantle last week, but ended up knocking over and breaking a candlestick holder.