Normally I would say it's odd, but this past molting season was an odd one with some molting very late, some taking forever and some molted twice. Another though is because she's a larger breed she could be having a late juvenile molt. Most are done with them by 7 months, but a bit longer wouldn't be unheard of.Because her feathers are all over the ground. It's the dead of winter here, why would she be molting?