Cockateil with no feathers

Hi Tanya welcome to the forum, how old is your cockatiel and how long have you had her?

hmmm I am really not sure what could be wrong do you notice if she is plucking her feathers? what mutation is she? do you have a picture of her?

I am not saying its feather plucking I am just trying to rule that out, I didn't think it was rare at all I have read of a few cases of cockatiels plucking feathers from underneath there wings

True I would think chest would be more of an easier place to get at, could mites or something like that be ruled out?

Your right about genetics though I know with Minnie she does have some bald spots underneath her wings but not totally bald though just a little in one area.