Sheep love routine. Each night they come back from grazing and browsing to be put in for the night. We have black bears, grizzly bears, wolves, and cougars oh my. If you do not want your barns and coops ripped apart at night bears, put up an electric fence...I have one. If you do not want a cougar jumping the fence at night and having a feast, put your animals in barns and coops.