Life span in the wild: between 9.5 and 35 years.
Size: Body, 20 to 28 inches; wingspan, 4.2
to 4.8 feet.
Weight: 3.5 to 6.5 pounds. Females are usually larger than males.
Coloring: Young owls get whiter as they age, but females overall are darker than males.
Diet: They hunt during the day and prefer lemmings, eating three to five a day. They will also eat rabbits, rodents, other birds, and fish.
SOURCES: National Geographic; owlpages.com