National Geographic : 1935 Feb
THE NATIONAL GEOGRAPHIC MAGAZINE Si national ueograplc society THEIR EERIE HOOTING FRIGHTENS TIIE TIMID The weird whoo-oo night serenade of the northern barred owl (top) may continue until dawn. They frequently respond to imitation of their calls. Inhabitants of dense woods and swamps, they live on mice, fish, crustaceans, insects, and sometimes small birds. Below is the rare northern spotted owl, a western cousin. With the barn and flammulated screech owls (pp. 225 and 236), these are the only dark-eyed members of owl families found north of Mexico.