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

American Barn Owl Population Trend in Washington

All statesGeneralists

American Barn Owl in Washington has held roughly steady: up 4% on the route-weighted index since 1989.

+4%Since 1989TrendPercent 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 →
13Routes 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 American Barn Owl Trends in WashingtonNotable 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 Washington. See the full index history below.

American Barn Owl Survey Routes in Washington

Routes recording American Barn Owl in Washington.
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 →
Pomeroy220242010
Montesand219951987
Lake Chelan220182018
Mercer220152015
Warm Beach119941994
Hanford Site119921992
Wilbur120052005
Ellensburg119951995
Pe Ell119941994
Carnation120042004
Wapato119921992
Camas120182000
Malden120082008

American Barn Owl Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradodelawarefloridageorgiaidahokansaskentuckylouisianamarylandmississippimissourinebraskanevadanew-mexiconorth-carolinaoklahomaoregonsouth-dakotatennesseetexasutahwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.