We are hopefully moving to a place where we can have guineas. It will be a 160 acre property, with approximately 8 acres around the house clear or semi clear. I raise Anatolians, so I want Guineas for the pest control. I plan to free range them (yes, I know not right away) and my dogs should keep most predators away as long as the guineas dont go off too far into the woods. There is a large coop/shed type building that I am sure is suitable for them as a house. I have a few questions: I'm not sure how many I should start with. We obviously have plenty of space, but input welcome. Can anyone give me a list of what I need to start up? I really don' t want to deal with heat lamps and stuff, can I start with birds that are past that stage? What age would that be, and is there any real good arguement NOT to do that? In the winter, should I still let them out or do they need to stay locked up?