Crackers with LOTS of Peanut butter! Make a few bites with that as a trail into the trap and place the biggest piece at the other end of the trap so they have to release the trigger mechanism to close it. Like clockwork!!
We hadn't done any trapping in a few years and this year their population was totally out of control. I wouldn't mind them if they weren't so darn destructive. The Rabbits eat at least whatever they nibble on. These Squirrels just destroy if the mood strikes them. Every few years you get one which is just nuts!
They are all hopefully happy playing in our gorgeous park along the local river now.