Steve,
Your picture of the 3 legged buck reminds me of a story. A buddy of mine was filiming while gun hunting and shot at a doe. After blood trailing her, they found her entire front leg. It was severed right at the shoulder. Long story short, they tracked her the entire day and never found her.
Next spring they were turkey hunting the same farm with the video camera. Low and behold, out comes the same 3 legged doe with a pair of fawns! They have her on film both times and there’s no doubt it’s the same deer. It’s absolutely amazing how resilient whitetails can be towards an injury.