I didn't let mine out of the run until they were as big as our cats. I only let them out of the fenced yard for True Free range when I am outside to watch them. I'm not afraid of hawks, because they have warned me of hawks so many times when I didn't see or hear them. I stay with them for free range because we have some dogs that roam the neighborhood. My next door's dog never enters our yard without a kid or adult from his own family, but there are are others who's dogs go where ever, when ever AND of course the dogs that people dump. Better safe than sorry.