Plus the flying squirrels have something to eat at nite. I think they eat more of my feed than the birds. My fav's are the Carolina Wrens. A pair have been sleeping under my porch roof every winter for years. Every nite I go outside to get wood they are huddled up together in a corner of the porch roof facing the corner. I think they assume I can't see them because they are facing the corner. Kind of funny really.