One corner of my lot is near a neighbor who might object to my shooting Red Squirrels. Unfortunately, that corner is filled with Black Walnut and infested with Red Squirrels.
One of my friends suggested a variation on the water-in-bucket trap. In its simplest form, it involves floating unshelled sunflower seeds or peanuts on top of about 8" of water in a smooth-sided, plastic bucket. They go in and cannot jump out.
I am going to run a slight variation on that idea.
The bucket will get plastic packing peanuts and I will run it a few days with bait but no water. I may even place a stick so they can easily climb out.
Then, I put out several of traps with water, packing peanuts and a floating, foam cup partially filled with the oily seeds squirrels love. But no stick.
After-action-report in about a week.