I have 10 hens and 2 roosters, 4 pekin ducklings and 4 BB turkeys I'd like to move from a fenced coop in order to free range. The area is fenced but the fence is not higher than 4 feet and is surrounded with high trees and bushes. I fear they will just go and I will end up empty handed. I also worry about getting the Pekin Ducks to a safe place at night (meaning being able to "collect" them. And... will my BB turkeys just fly and leave? Should I wait until they are heavy to let them free range? Thanks for all the advice you can give.