Boreal Owl Biology
A Reference for North and Central American Owls
Name: Boreal Owl - Aegolius funereus
Other Common Names: Arctic Saw-Whet Owl; Funeral Owl; Richardson's Owl (richardsoni); Tengmalm's Owl (funereus); Sparrow Owl.
Subspecies: TIn North America there is only one accepted race of Boreal Owl. There are five other races recognized across Europe and Asia. One of these other races, A. f. magnus, is resident in N. E. Siberia and may accidentally show up in Alaska but will not be discussed further here.
A. f. richardsoni is resident from south and central E. Alaska across Canada to the East Coast. Also resident in the Rocky Mountains as far south as Colorado. Light blue area on the map above indicates probable local breeding.
Measurements and Weights:
Wingspan: 19 - 25 in.
Length: 8.5 - 12 in.
Tail: 3 3/4 - 4 1/4 in.
Average Weight: Male: 4.4 oz.
Average Weight: Female: 6 oz.