I've got a mixed flock and some of the 1 year old hens are having an issue with the feathers on their back. Ref 2 pics. I realize this has prob been addressed but I've looked at the pics and can't decide. I've examined them with a magnifying glass and can't find any mites or lice or creepy crawlies. Their butts are just fine. The white one started it losing the feathers at the top of her wings but I thought it was from my rambunctious roo. I got her a saddle which the lil minx has gotten out of every time I've put it on her and now she's skittish from me. :-( So any help would be delightful - is this molt? Some of the others have a bald spot on the front of their neck like they've been doing acrobats on the perch. The 4 mo old crew are not affected whatsoever and neither is the roos or cochins. TIA!