these types when we bred them back yrs ago litters can be different from same parents but all turned out good little pot dogs and some little stunners do get produced having kept pure whipps and none registered whipps i would allways go for a well bred whirrier type for general pest controll in all types of weather and working on rough ground killing rats on tips waste sites they excell ferriting general country mans dog with low maintainance easy ta keep great little dogs