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

Red-tailed Hawk Population Trend in Oregon

All statesGeneralists

Red-tailed Hawk in Oregon has surged: up 99% on the route-weighted index since 1970.

+99%Since 1970TrendPercent 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 →
141Routes 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 →
56YearsYears 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-tailed 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Red-tailed Hawk has surged in Oregon: up 99% on the route-weighted index since 1970.

Red-tailed Hawk Population Forecast in Oregon

If the recent trend holds, Red-tailed Hawk in Oregon is projected to rise about 28% by 2029 — from 2.2 in 2024 to a central estimate of 2.8 (95% range 2.0–3.6). A 5-year backtest shows a typical error of ±15.5%, with 80% of held-out values landing inside the 95% band.

+28%Change by 2029TrendPercent 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 →
2.8Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
2.0–3.695% 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 →
±15.5%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-tailed Hawk in Oregon is projected to rise about 28% by 2029 — from 2.2 in 2024 to a central estimate of 2.8 (95% range 2.0–3.6). A 5-year backtest shows a typical error of ±15.5%, with 80% of held-out values landing inside the 95% band.19682029
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 →
20252.71.93.5
20262.82.03.6
20272.82.03.6
20282.82.03.6
20292.82.03.6

Red-tailed Hawk Survey Routes in Oregon

Routes recording Red-tailed 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 →
Malheur Nwr5120221987
Merrill2420221993
Deschutes2020241968
Umatilla1220231988
Trout Creek1220211996
Modoc Point1120181969
Lone Rock1020241968
Joseph1020241971
Modoc Point 2920242024
Crane920241993
Adair820241972
Zumwalt820051995
Pendleton720241979
Blitzen 2720241994
Malheur Res.720232022
Twickenham720242010
Mount Vernon620241987
Madras620241997
Silvies620241994
Bridgeport520221987
Scio520241971
Garfield520231974
Clover Creek520241972
Adrian520211984
Emigrant Lake 2520242002

Red-tailed Hawk Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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