My gram recently adopted two more lovebirds. One, the Fischers, has been losing feathers. The woman thought that the dutch blue (Winkie) whom she was housed with could be plucking her, but we housed her alone and she was still losing them. I thought she could be moulting, but now her down is starting to come off as well. If she was moulting, would the down be falling out? If she's plucking, how can we get her to stop? We did put Winkie back in the cage to see if that would help, but so far, she is continuing to lose feathers and currently has one tail feather...

I would get her checked out. Could be some type of nutritional deficiency.

I agree- it'd be best to be able to rule that out, or modify the diet accordingly.

I would defintely get her checked out AND keep her quaranteened away from the other birds in the home!

I think it's a dietary deficancy. She isn't consistantly fed fruits and veggies. Called my AV and aid it was probably diet and to start giving her more leafy greens. It looks like she's stopped (it was on her rump area) and there are pin feathers. I took some pics that I'll post later.