Now’s a good time to clean feeders With avian activity winding down somewhat, most birdfeeders have gotten dirty. I know mine have! Cleaning is easy and good for birds. I soak mine for a few hours in a 10:1 mix of water and bleach (although I’m told diluted vinegar or laundry detergent is just as good). Several times during the “soak” I agitate the feeder to get stuff out of tight spaces. Then I brush it inside and out, and rinse it with fresh water. I’ll let the sun dry it, and the birds could be “feederless” for less than a day.