You need to stop pulling the tail feathers. It's painful for your bird and could eventually damage the feather follicles to the point that he can no longer grow feathers there. Let him have broken tail feathers until he molts them naturally, it won't look super attractive but there's no harm in it.
If you can't stop him from jumping off the cage, then keep him inside the cage until his tail feathers have grown out to the point that they are no longer blood feathers. If you take him out before that point, put him in a place where he can't fall for a long distance and break a blood feather.
After the blood feather stage has passed, any feathers that get broken should be left in place. Your birdie needs to let his rear end heal, and pulling feathers unnecessarily won't let that happen.
Last edited by tielfan; 02-07-2012 at 06:31 PM.