Here is her tail which is more than likely a genetic mutation. The fact that she threw two polydactyl kittens in her last litter sort of confirms this tail was this way from birth.
Tail
Feral Cat Behavior
Blogging about feral cats and life in general
I just got to catch up on the last few days of Phoenix. She is already responding to love, respect and safety! Thank Goodness she is now with you.
Marian
Sent you a bit to help out with her. Unfortunately, I will be in between employment for a while, so I don’t know when I will be in the position to send any more for a time. Hopefully not for more than a couple months. I’ve got 6 of my own kitties to look after, but I hope and pray for the best for you, Mike and all the little ones who need your help. Bless you.
She is gorgeous! You know, my RB kittie Lil Bit had a tail like that too! She was what I call a dilute calico, light gray with light orange and tan in spots. Wonder if it’s a calico thing?