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

Barred Owl Population Trend in Oregon

All statesBirds of prey

Barred Owl in Oregon has fallen sharply: down 63% on the route-weighted index since 2011.

-63%Since 2011TrendPercent 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 →
15Routes 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 →
16YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Barred Owl Trends in OregonNotable 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 Barred Owl in Oregon. See the full index history below.

Barred Owl Survey Routes in Oregon

Routes recording Barred Owl in Oregon.
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 →
Trask Summit220192011
Harlan 2220172017
Myrtle Grove120222022
Shellrock120192014
Molalla120252021
Riley Peak120162015
Santiam120092009
Salado120132013
Selma120232023
Fisher120102010
Blue River120232023
Lorane120222009
Secret Val120252025
Warner Mtn.120242012
Paisley120132013

Barred Owl Population Trend in Other States

alabamaalaskaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawashingtonwest-virginiawisconsin

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