So today I was outside watching my flock and I noticed the Chickadees and Finches grabbing the feathers from my runs for their own nests. I am all for helping the wild life but I don't want them spreading disease to my flock. I am headed outside to clean up the feathers so that the wild birds don't go near the chickens, but my question is how do I keep a biosecure area with wild birds intruding?