If you have a yard or live near the woods, chances are you've noticed chipmunks running around your property as they gather food and excavate new homes. While chipmunks can be beneficial because they eat grubs and other pesky insects, they can also wreak havoc on your birdfeeder and compromise the structural integrity of foundations and walls due to their extensive burrowing. According to GetRidofThings.com, chipmunks have also been known to eat bird eggs and even hatchlings (See References 1). If you want to cut down on the chipmunk population around your property, there is an easy, homemade solution to trapping them.
Fold the cardboard tube so that it forms an upside-down U-shaped tunnel. Doing this will prevent the cardboard tube from rolling around the surface of the table.
Place a table (a chair or stool will also work) in an area where chipmunks are rampant.
Put the cardboard tunnel on the edge of the table so that about ½ or ¾ of it hang off the edge.
Place a large bucket on the ground underneath the cardboard tunnel. The bucket should be tall enough so that a trapped chipmunk cannot escape, and heavy enough so that it won't be able to knock it over.
Bait the cardboard tunnel with sunflower seeds and some peanut butter. Make sure there's bait at the end of the tunnel (the part that hangs out over the edge) and a few seeds on the table surface leading up to the tunnel. Once a chipmunk follows the bait into the tunnel and travels to the end to take the extras, the weight of the animal will cause the cardboard tunnel to fall into the bucket.