Loading... Please wait...Fill up the Looker Snack Box Squirrel Feeder with shelled corn or peanuts, and watch as the squirrels learn to open it to feed. There is a plexiglass window on the front, so the squirrels will need to learn to open the hinged top in order to get to their snacks. You may have to put a couple nuts on the outside, so they learn that there are treats inside.