i have a relatively small (aroun 30 acre.) stable yard and several paddocks permission, that i have shot for the last 3 years local to me and my wife stables her horse there. We have been asked to remove as many as possible and with two of us shooting it the first year we took hundreds out with just sub 12 airguns and the numbers fell rapidly, but can go anytime and always spot several out most days/evenings Second year was harder to get as good numbers as year 1 but still take half a dozen each shoot average. the yard sits in a large valley surrounded by farm land which is also shot by syndic