YES! Marans should be lightly feathered down the outside of the shank, and on the outer toes. Full feathers are much more preferred than some of those whose are fuzzy or patchy. There should be NO feathering on the middle toes. Hope this helps?
Debi is right, Marans should have feathered shanks. There are Marans that are clean legged and we all get them from time to time. We don't get them very often, but once in a while we have one pop up. Our show standards call for lightly feathered down the outside of the legs and onto the outer toes. If you are interested in raising show quality Marans, I wouuld suggest that you select your breeding stock based on the Breed Standards.