Raising chickens in your backyard? Then chances are you're also raising a few families of rats and mice. The problem is caused by the design of conventional chicken feeders. They help the chickens to spill as much grain as they eat! That creates an after-hours picnic for the local rodent fraternity. Here's an efficient DIY chicken feeder made with PVC pipes that can help you to reduce rodent access to food. Fill the pipes and then cap them at the top. When feeding time is over, place a cap on...