Boreal Owl
Last Review/Updated: May 31, 2002
Aegolius funereus
The boreal, or Richardson's owl is similar to the saw-whet owl but is larger in size and has spots instead of streaks on the forehead. It is about 25 cm (10 in.) long. The upper parts are grey-brown with white spots on the forehead, crown and the area around the facial disk. Larger spots are on the hindneck and wings, and the tail is barred. A distinctive brown bar separates the head from the breast. The breast is white with streaks and blotches of brown.
Upon returning from their wintering areas in the northern states, boreal owls take up residence in the coniferous forests of the northern hemisphere. In Alberta, they breed in all but the alpine and prairie zones. Using old woodpecker nests and empty tree cavities, the owls lay 4 to 6 eggs.
The main diet of the boreal owl consists of bats, mice and other small animals. Being a nocturnal hunter, it usually sits motionless in the branches of trees and bushes during the day. Like many owls that hunt at night, it becomes very lethargic in daylight and may be approached quite closely for observation.
