We are cleaning out brush in the back yard where our coop and run will be and have realized that the previous owner put down green shag carpet under where she had kept her rabbits. We are planning to put the run in the same place, as it is extremely convenient for getting in and out during the winter. We are raking and raking, but can't seem to get all of the carpet fibers out of the dirt. My question is this: Will my chickens eat the carpet fibers? They are about the same diameter and length as an earth worm, but fuzzy. Will the fibers hurt the chickens? Should we dig down further to ensure every single fiber is gone, or should we ditch the idea of having the run there and figure something else out?