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

Red-shouldered Hawk Population Trend in Oregon

All statesBirds of prey

Red-shouldered Hawk in Oregon has surged: up 12× on the route-weighted index since 2000.

12×Since 2000TrendPercent 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 →
25YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Red-shouldered Hawk 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 Red-shouldered Hawk in Oregon. See the full index history below.

Red-shouldered Hawk Population Forecast in Oregon

If the recent trend holds, Red-shouldered Hawk in Oregon is projected to stay roughly flat through 2030, near 0.15 (95% range 0.08–0.21). A 5-year backtest shows a typical error of ±37%, with 80% of held-out values landing inside the 95% band.

+6%Change by 2030TrendPercent 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 →
0.15Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.08–0.2195% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±37%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Red-shouldered Hawk in Oregon is projected to stay roughly flat through 2030, near 0.15 (95% range 0.08–0.21). A 5-year backtest shows a typical error of ±37%, with 80% of held-out values landing inside the 95% band.19972030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20260.130.060.20
20270.130.070.20
20280.140.070.20
20290.140.070.21
20300.150.080.21

Red-shouldered Hawk Survey Routes in Oregon

Routes recording Red-shouldered Hawk 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 →
Green520252019
Glasgow320252009
Days Creek320232007
Emigrant Lake 2220242006
Secret Val220102003
Selma220252009
Winberry220232023
Hazel Camp220221997
Ruch120252025
Coquille120252010
Salado120222022
Umpqua120252013
Elkton120232022
Prospect120212021
Sams Valley120252016

Red-shouldered Hawk Population Trend in Other States

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

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