One of our blogger friends/fellow aspiring farmer left some great questions in a comment on our Of Guineas and Guard Dogs post. You can see the questions in the comment section, but here's the gist of it:
I was kind of astounded by the idea of using a poultry tractor for shade for larger grazing animals. One issue we've had with the fence is that since it's SO hot and humid here and since the majority of our pasture is just that- pasture- with no trees, the sheep get very overheated if we leave them in all day. We've taken to letting them sleep in there if it's not going to storm and graze until about noon. Then we bring them in the barnyard for a siesta. Later on we put them back out.