BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Barred Owl Population Trend in Oregon

All statesGeneralists

Barred Owl in Oregon has declined: down 47% on the route-weighted index since 2011.

-47%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 →
14Routes 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 →
15YearsYears 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 →
Molalla220222021
Trask Summit220192011
Harlan 2220172017
Myrtle Grove120222022
Shellrock120192014
Riley Peak120162015
Santiam120092009
Salado120132013
Fisher120102010
Blue River120232023
Lorane120222009
Selma120232023
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 2026-05-22.