Spotted Owl Biology
A Reference for North and Central American Owls
Name: Spotted Owl – Strix occidentalis
Other Common Names: Arizona Spotted Owl (lucida); Mexican Spotted Owl (lucida); California Spotted Owl (occidentalis); Northern Spotted Owl (caurina); Western Barred Owl; Wood Owl.
Subspecies: All three races of the Spotted Owl are found in the United States, one of which has a range that stretches into Canada and one into Mexico.
S.o. caurina is the northern most race and faces some of the greatest danger of deforestation. It ranges along the West Coast from SW British Columbia to San Francisco in the coastal ranges.
S.o. occidentalis is found both along the west slope of the Sierras in California and in the coastal ranges from San Francisco to San Diego.
S.o. lucida ranges from S. Utah south through Arizona, New Mexico, and W. Texas down into Central Mexico.
Measurements and Weights:
Wingspan: 40 – 50 in.
Length: 16.5 – 19 in.
Tail: 8 1/4 – 9 in.
Average Weight: Male: 21 oz.
Average Weight: Female: 23 oz.