My back yard is 1.5 acres and is enclosed with a standard 4 foot high chain link fence. My big fat Brahma roosters and hens cannot fly over it, but my lighter anconas, sex links, minorcas and wyandottes can. I had to clip their wings to keep them in the yard so the neighbors dog does not kill them when they jump the fence. I am considering getting a few heritage turkeys. Will they be able to fly over the fence? Or should I get regular broad breasted turkeys?