I need some help. I am adopting a chicken who got her leg broken by a horse. She just had surgery 2 days ago and has pins in her leg. I work for the vet who operated on her. I have an 8x10 dog run and am wondering what to put on the bottom for substrate? Do you rake every day to clean the poop or what is the best way to keep it clean. I can't let her free range because we have hawks in our neighborhood. She also has stick fleas which are being treated ( bad infestation) so I want to make sure she does not contaminate my yard. How can you tell when they are all gone. They don't seem to fall off when they are dead. Thanks for any advice.