During the winter/lambing time our lot live in a couple of smaller paddocks near the house, but after they've all lambed safely, we open the gates and give them access to the fields the horses have grazed all winter, where they do a lovely job clearing rough bits, trimming hedges, weeding etc. All in all, about 40 acres in 4 different fields (and if they wanted they could go onto the neighbouring 200 acres of moorland, but they don't seem to bother, preferring our sweet grass to the rough heathery stuff. Without fail the entire flock come home every evening and spend at least a couple of hours loitering in the yard, napping and generally chilling out.
Mic