BirdAnalyst
Family · Strigidae · Strigiformes

Owls Population Trends

15 species tracked, ordered by long-term trend. Steepest declines first.

Owls species ranked by population trend.
TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Eastern Screech-OwlBirds of prey-74%1968
Spotted OwlBirds of prey-64%1975
Northern Saw-whet OwlBirds of prey-52%1973
Long-eared OwlBirds of prey-46%1972
Northern Hawk OwlBirds of prey-36%1984
Western Screech-OwlBirds of prey-27%1973
Short-eared OwlBirds of prey+34%1969
Great Horned OwlBirds of prey+50%1968
Burrowing OwlBirds of prey+56%1968
Northern Pygmy-OwlBirds of prey+98%1970
Barred OwlBirds of prey+124%1968
Flammulated OwlBirds of preyn/an/a
Elf OwlBirds of preyn/an/a
Great Gray OwlBirds of preyn/an/a
Boreal OwlBirds of preyn/an/a