I am a big fan of Cedarcide, but haven't used it since putting up the coop and getting chicks. Stopped using it about four months ago after hearing that Cedar oil isn't safe for chicks. I tried checking out all the info on Cedarcide's site, but haven't found anything related to safey regarding chickens. I've used it both inside and outside the house, we use it as a spray on us and the dogs during flea season, and have used it effectively in place of Deet when I went on a medical missionary trip to Peru. But want to make sure that the chickies are protected and safe.