I totally agree with cloverfdx, get the kitten while the JRT is a puppy! That way like cloverfdx said they can grow up together, introduce then in a casual way though! And also I have a female JRT and we have a rabbit and I can sit the rabbit right down beside her and she will just look at him, and he can run fast and she defefinetly has a very highprey drive!

Sorry bout the spelling!