I see that alot of people free range.I would love to, but I have 3 dog next to me on my 100X100 lot in which my house is in the middle of,the two houses a separated by a 4ft fence.I The girls have a 10x10 run which is completely enclosed.I've let them out for a little while i'm out. but get nervous that they will fly over the fence. am I correct to feel that way or am I being an overly protective chicken MOM.