This medium-sized owl stands 30 -37 cm (just over a foot), and has a unique light-coloured heart-shaped face with dark eyes and a light beak. Preferred feeding habitat is open fields and grasslands. Nesting commonly occurs in barns and other built structures, natural tree cavities, and nest boxes. Barn owls may roost in forest trees in winter. Stewardship involves conservation of rodent habitat (grasslands and old fields), conservation of old out-buildings used by owls, provision of nest boxes, and limiting the use of pesticides and the poisoning of rodents (which constitute much of the owl’s food supply).