Cat Scratching Tree Bark . Then cut flaps into the bark on the trunk by making two parallel cuts through the bark, starting from the wound. If left without a similar outlet in your home, you may notice your cat replicating this behavior on your furniture or drapes. A Purrfect Natural CatScratching Post Cat scratching post, Natural from www.pinterest.com Applied animal behaviour science 227 104997. Cat scratching damage to a cabbage tree. Cats will claw tree trunks, as part of territorial marking and claw sharpening, leaving thin parallel scratches.