It’s probably her instincts but just a tip: you can clip her wings it’s ok she will still be able to fly low for short distances, if you clip the two end feathers on her wing tips make sure to look for a video or contact me for more information. Be sure to do both wings! So she can still fly a...
Walking backward is a bad sign, it usually indicates brain damage or a neurological condition. If it's an open crested breed, it could be a head injury, but it can also be an illness like coryza, kinky-back, marek's, etc.
Can indeed also be caused by vitamin E or selenium deficiencies that hit...