One of the best Topics ever on Thl.30+yrs ago(god i'm getting old)We used our Collies all day on the Farm.At night i used to Lamp one Particular Bitch. 25" Tts.
Very good on Rabbits but Excelled on Fox.We Never actually fed ours(they had food put out for them) they survived on what they caught.Wish now in Hindsight i Bred out of that one Particular Bitch