<P> The Jack Russell should always appear balanced and alert . As it is primarily a working terrier , its most important physical characteristic is its chest size , which must not be so large that it prevents the dog from entering and working in burrows . The red fox is the traditional quarry of the Jack Russell terrier , so the working Jack Russell must be small enough to pursue it . Red foxes vary in size , but across the world , they average from 13 -- 17 pounds ( 5.9 -- 7.7 kg ) in weight and have an average chest size of 12 -- 14 inches ( 30 -- 36 cm ) at the widest part . </P>
<P> The Jack Russell should always appear balanced and alert . As it is primarily a working terrier , its most important physical characteristic is its chest size , which must not be so large that it prevents the dog from entering and working in burrows . The red fox is the traditional quarry of the Jack Russell terrier , so the working Jack Russell must be small enough to pursue it . Red foxes vary in size , but across the world , they average from 13 -- 17 pounds ( 5.9 -- 7.7 kg ) in weight and have an average chest size of 12 -- 14 inches ( 30 -- 36 cm ) at the widest part . </P>
what is the weight of a jack russell terrier
what is the weight of a jack russell terrier
average from 13 -- 17 pounds ( 5.9 -- 7.7 kg )
average from 13 -- 17 pounds ( 5.9 -- 7.7 kg )