BirdAnalyst
Species · Colorado · BBS 2026 Release · 1966–2025

American Barn Owl Population Trend in Colorado

All statesBirds of prey

American Barn Owl in Colorado has declined: down 27% on the route-weighted index since 1995.

-27%Since 1995TrendPercent 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 →
9Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable American Barn Owl Trends in ColoradoNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for American Barn Owl in Colorado. See the full index history below.

American Barn Owl Survey Routes in Colorado

Routes recording American Barn Owl in Colorado.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Delta220061993
Cheyenne220112011
Kirk220032003
Doyle Bridge 2119991999
Crowley120091995
Rush120252025
Flagler120082008
Gilpin119891989
Two Buttes120102005

American Barn Owl Population Trend in Other States

alabamaarizonaarkansascaliforniadelawarefloridageorgiaidahokansaskentuckylouisianamarylandmississippimissourinebraskanevadanew-mexiconorth-carolinaoklahomaoregonsouth-dakotatennesseetexasutahwashingtonwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.