Thought I would share: I recently hatched about two dozen perfectly healthy chickens. They were all killed from the fumes from cooking with teflon (non-stick) pans!! Beware!! I had no idea this could happen, but I have thrown out all my non-stick and this batch of babies, about 1 week old, have had no issues whatsoever! Be cautious when using teflon to cook if you have your brooder in the house!