Need to make a nice squirrel slurry.
Get a large jar, glass works best but it's not good to clean up, so maybe a large plastic jar.
Fill said jar with squirrels and close the lid tight.
Leave jar out in the summer sun and let nature take its course. A couple months in the sun should be sufficient.
It turns into a soupy mix and you don't want to be nearby when it comes open. Place the jar on your bait pile, stand back a hundred yards and shoot it (this is why I don't recommend glass but it "cooks" better in a glass jar). Makes a nice stink to draw in bear or whatever else might take an in interest in a squirrel sun stew.