I am going to try raising some turkeys this spring. I have had chickens for years so not entirely new to the process. Last year my neighbors dog got out and killed 10 of my chickens and the rooster. My question is if I plan to free range my turkeys in limited amounts would an enclosed run 12x30 be an adequate amount of space for them to be confined in? I would have 2 slates and 5 BBB's.