to disturb nesting wood peckers. However they are shy, so a large smiley face balloon, or Owl decoy should help you out. I am not joking about this. My parents have a cedar sided house, and the wood peckers used to make a hole in the siding outside their bedroom, and make a nest. My parent called the pest control guy and what I wrote is what he told them. I am not sure what is worse, the wood peckers, or the squirrels that replaced the woodpeckers in the fall.