M.M.! Tag team, me and my neighbor. Double bubble in wrappers, not the round ones. The gum disappeared and so did the chipmunks. There were fewer squirrels. I had to go through 3 bags.
I think that get badly constipated which makes them slow in the open and a good target for raptors. (Doesn’t kill the raptors like Warfarin.) The ones that the raptors don’t get go off to die in their burrows.
I don’t think this would work in a heavily wooded area. (My yard is mostly Lawn and garden, a few trees in the front and the neighbors yard where owls and hawks can perch. )
We have 20+ acres and about 1 1/2 of that is not wooded. It’s the area just around the house with the garden and it’s grass.
We have a few squirrels, lots of mice, turkeys, and deer.
And we have hawks and several owls. There are even bald eagles living nearby but I doubt they are close enough to make a difference on our property.
I will definitely give that a try.