Everytime i have seen pic's of great ratting days with rat numbers around the 100-130 mark there is always at least 10 terriers there so when you average out that it works out at around 10-12 rats a terrier form the day. So where is the hard test for a ratting terrier. On the other hand when a terrier is working to ground it will often find himself faced with quarry bigger and more powerful than himself, and for him to hold that in one spot for a day is a proper test of the terriers fitness, working ability, mentle state and desire to WORK. I have seen 5 month old terriers kill rats without an