Mark , My dogs do get plenty of work through the winter months, but I just don`t go around bragging about it, My Partner works on a 5,000 acre estate and part of his job is pest control ,we also have other neighbouring farms to go on aswell, So the dogs are worked most days, As for proven dogs perhaps you should get your facts right before judge my dogs working ability, I don`t make them out to be world beaters its not my nature but they do the job we need them for and we never come home empty handed.