I have a white leghorn. The ground she walks on is muddy, and she now has a dirty back. (Dratted roo. He wasn't supposed to be able to.) I saw a pamphlet on how to bathe one, but I don't have the vinegar it recomends. Also, would FINESSE work, or would I need to use the oatmeal flea and tick dog shampoo and conditioner? (This question is just because I am usually OCD about clean. I am not showing them.) Thanks!