It has been determined that BE 05-01 (Lead Bottom) had a vascular accident. In other words, a stroke. It effected his left side, mainly his wing, leg and foot. So he's being treated for that and mild asper. His nystagmis (eye twitch) is gone and his breathing is no longer labored. He will eat on his own if feed with forceps. He'll bite you or talon you if your not careful.
Continue keeping your feathers crossed. He's a fighter but can use all of the help there is.