I have been raising exotic pheasants for a long time. I decided to broaden my horizons and mess with chickens. I have 15 blue marans chicks and 15 wheaten americauna chicks bought and payed for and I am waiting on delivery. I have an acre and half completely fenced. My aviary and one dog and 3 horses are in this lot. Will chickens fly over a 5 foot fence and go visit the neighbors (bad idea) or stay inside an acre encloser most of the time?