I have a 1/2 rat 1/2 Jack Russell .... she is a great dog. She has been deer and hog hunting with me for years.... still hunting she would work like a bird dog to about 50-75 yards without barking. She jumped a lot of black tails that I would have never seen..... around the house she would hunt and kill ANYTHING she could catch..... scrapped it up with a stray bulldog and had to have a bunch of stitches.... if you get one be aware they are on a 24 hour suicide mission.... not afraid of anything.