I've already seen the poluation explode. there are at least 4x as many in my backyard this year, and i had to kill off three parents and 8 babies from inside the walls of my house over a 3-month period, along with two i trapped near a spot they were tearing up on my house. I'm over the damn squirrels at this point. lots of babies out back that, if they continue to destroy my house, will find themselves taking a dirt nap.