This is something to read about declining numbers of rabbits on your shoot Darryl. I first though that I was getting unwelcome attention from poachers and other trespassers taking the warrens in large numbers but, I'm not so sure of this now. Especially after reading of your findings here.
The rabbits are really very wary and aware here on my permission, from such numbers that I've actually seen and had a shot or two at.
Simon
Hard to explain Simon!
One theory we have is that the farm next door to our permission used to be a pig farm but the farmer has now switched to chickens