Dealing with a bird in a chimney or fireplace can be a stressful situation, not only for you but for the bird as well. Birds resting or nesting atop the chimney sometimes wander inside it, unable to fly back up to escape. Freeing the bird may take some time; being quiet and patient during the process will help coax the bird where you want it to go so you can get it out of the house, back outdoors, safe and happy once again.