Pekin molting in early March

I have a disabled Pekin that I rescued last Easter when a breeding facility was going to put her down because she only has one eye. Now she has very bad leg deformities (even after all our efforts to help her) and has just recently (within the last week or so) lost most of her wing feathers and her tail. She seems more exhausted and isn't getting around as well. Does anyone have an idea about what's happening? Is this normal? My other Pekin is perfectly healthy and not molting