I haven't used the traps, but instead went over the top half of the run with hardware cloth, and put a tarp over the top to double as shade. Dramatic decrease, even when the doors are wide open for free range. They must not have liked the change. The bottom half of the run was already hardware cloth.
We actually don't use chicken wire for anything. Coons can get through it if they really wanted to, dogs and such as well. We don't use any wire that's been woven, only welded. The 1/2 inch hardware cloth prevents thieving birds and rodents, and offers more protection from what would prefer chicken over their feed. You can more easily spot any gaps or weak spots with it too.
It's tedious to block their access, but worth it in long term savings on feed costs. You can get the black plastic netting (will only stop birds) in 7x100 foot rolls cheaply enough at Lowes or similar. It's a pain to work with though, and actually get all the spots unless you take the time. When ever we build another run, we're just doing the whole thing in hardware cloth. Otherwise you just end up spending money on other things, trying to find what will work just as well. What we've spent on prevention... about equal to the cost of just replacing the larger wire with hardware cloth.
It's getting to be that time of year where I need to hit the mice hard and heavy with traps. I saw one in the garage, and where there is one....
Last year I trapped 32 mice in a couple of weeks. Switched all feed storage to galvanized garbage cans. The squirrels decided they were hungry enough to chew through the plastic bins.
The good news is, we don't have any pests at the house. LOL They're all trying to form a dang ecosystem out at the coop. You should see my wolf spider collection out there. I leave them to eat other things. I have a big orb spider doing her part too, though she's only out towards the end of summer. She makes a new web every couple of days, almost 3 feet across!
Had some squirrels bickering over territory (prime yard here, compared to the other 7 they have to choose from on the block) and they make quite the thud when they hit the ground from 30 feet up. The losing squirrel hit the ground 3 times, and was quite dazed by then. There's enough of them now that I need to start thinking about trapping them. I only want a handful of them for predator alert, but not so many that they get sneaky for feed. The chickens seem to listen for those squirrels, they pause and look around when they start going off.