 Here's something else that's been added by the Talmud that are not taught in the scriptures. First of all, this heifer was never to have anybody riding it. Nobody ever was to be on top of it. No one was to even lean on this particular heifer that was to be used in this sacrifice. She was never to have a garment even placed over her. Even if a bird rested upon her, she was considered disqualified sacrifice.