Hello, I have 14 sexlink pullets that just started laying. Everything was going great, yesterday I noticed that my black sexlinks were missing feathersat the bottom of there back to the tail feathers! My red sexlinks are just starting to do the same, but my white hens look fine. I am thinking that the white pullets are pecking feathers off the rest of the pullets. I do not think that these are some kind of mite. I have a 6 x 8 hen house and a yard a little larger. Fresh water and laying pellets at all times. Does anyone have any suggestions on what to do? Thanks Lee