Just to add to the summer ferretting thing-Some years ago,I worked for a rabbit clearance society.The work was all year round ,mostly gassing but some customers wouldnt have them gassed but paid their fees for clearance like the rest .We,3 in all had to ferret year round on these farms and learnt a fair bit about lay-ups and net skippers.Luckily ,the main of the work was on chalk downs,the buries being open and just holes in the ground.We always collared any ferret to ground as collars were supplied.[lucky me ].
We half heartedly netted buries but never worried about the odd bolt hole in cove