you say its a paid job and you are looking for tips? well my tip would be , not to take it on until you have more experience , trapping squirrels is not difficult but you still have to know how to go about it ,you have made the right start by asking for a few tips but until you put that advice into practice you will still not have any experience, start at the bottom with a couple of fenns and learn the job, its not hard but there are no short cuts, once you have the kit and the knowledge you can charge for your services, until that time squirrels ,rabbits , rats ,and moles will often m