Hi Buckhunter
I have had Barnevelders with an occasional small feather on the shank and last year I hatched a pullet that had stubs, very tiny feathers between her toes, you would only see them if you looked closely. These are pure Johan line and I have been breeding them a couple of years before I saw any feathers or stubs on shanks or toes. This is a DQ in shows and these birds should not be used for breeding for fancy purposes. I wouldn't blame the breeder unless their breeding birds expressed this trait.
This happens in several breeds, for example I bought some really nice light sussex a few years ago and one of the chicks had light feathering on the shanks. I just culled the bird and have not had it in any of the birds in this line that I have bred since. This isn't to say I may not see it again or that if I out cross it may not return.
Andy