They'll stay in the coop all the time for about a week, enough to establish a sense of place, then I'll let them roam around during the day. I have to lock them back up at night because of raccoons, mink, weasels, foxes, and who knows what else might eat them. My dog does a fairly good job of keeping them "safe" during the day. I think, or want to believe anyway, that they'll eat ticks. In the past years I've raised guinea fowl, but they're hard to get from the hatchery in early spring. By the time they're big enough to eat bugs the summer is almost over.
In the fall I'll slaughter and freeze the birds, giving them to friends and family.