Oh boy, is she a beautiful girl. I hate to admit — I had never heard of a mountain feist until I read your post. Googled. So pretty much a small game hunting dog — but not a ratter like a Jack Russell or the like? I am intrigued.
Abby is a beauty.
The Feist breed is one of the first designer breeds. They consist of Rat Terrier, Jack Russell Terrier, and other smallish terrier breeds. There are Treeing Feists and Mountain Feists but the Mountain Feists also tree. Some have folded ears and some have prick ears. Still, they are Feists regardless of the different combinations of terrier DNA. They have been around for hundreds of years and were bred to be small game dogs and believe it or not, protectors. The Scots brought some here from Scotland and the Cherokee kept them for hunting small game, protecting the kids, and watchdogs. Mine are called Cherokee Mountain Feists. A smarter dog never lived. They are typically used to tree squirrels but will chase down a rabbit. Abby prefers squirrels and Amy prefers rabbits. The third one is actually my daughter's dog Jack and the littermate to my Amy. All three are siblings. I keep him during the day so he can play with his sisters. I also have a fenced yard and she doesn't. Abby is one litter older than Amy and Jack. Jack is a digger of rats and moles. LOL
Needless to say, not much vermin around here inside or out!