I have a special needs hen who is quite a bit different than the rest of my chickens. She used to belong to my grandfather, and wasn't well cared for. I think she may have been dropped as a chick, or kicked when she was older. She can't jump, or roost, so she sleeps in her nest box. She is half blind, so she doesn't scratch with the other chickens. Because she can't scratch, her nails are starting to get long, and I was wondering how I should trim them. She is my sweetest hen, and it should be pretty easy to trim them. I just don't know how to do it without accidentally hurting her. Thanks in advance!