Be careful with this. We hired an exterminator once to deal with a carpenter ant problem and he said the number one cause of vermin infestation (rats, mice, sq

Be careful with this. We hired an exterminator once to deal with a carpenter ant problem and he said the number one cause of vermin infestation (rats, mice, squirrels, chipmunks, etc) is putting bird feeders near your house. Apparently the nuts and seeds attract vermin, which inevitably tunnel into your house through openings, and make it their house. I love the sight of birds, but after seeing chipmunks (ground squirrels) dig a huge tunnel network under our front yard, to the point where the lawn was collapsing, I'm not risking it.