i recon a proven rabbiting terrier is a dog/bitch whos had a few good seasons under there belt bushes good dont loose the scent there on once the rabbit has bolted and carry on bushing for something that aint there,must be up and on the rabbit quick and put plenty of presure on it that way it either bolts,goes to ground or terrier catches it never passes rabits by so very good nose is needed imo,has to mark smack on every time not faulse marking.like alot of terriers do if started to young.i like them to have a good catch rate aint no use to me otherwise but each to there own i supose only on