Yesterday I noticed one of my bantam hens had 3 what I would call notches missing from some of her tail feathers. At that point no other birds had anything else like it. Then this morning I noticed one of my roosters and another hen had them as well. Upon further inspection the, whole flock is normal/healthy, no parasites, with the exception of these three birds and their notched tails. The notches are clean cut-outs from a full feather as if I took scissors and snipped off a middle portion and left everything else. Does anyone know what I've got going on here? I will post pictures later today when I can.