These nongame birds are nocturnal and most of their diet consists of rodents. They inhabit all elevations. Nest territories are utilized from 3-15 through 6-15. Active nest sites require a 0.25 mile radius buffer zone protected from human disturbance. Abandoned nests of other bird species are utilized for nesting. Eggs incubate for 26-28 days and fledging occurs in another 30-40 days. These owls have few enemies, except man. Their population trend is stable.