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

American Robin Population Trend in Oregon

All statesForest birds

American Robin in Oregon has edged down: down 19% on the route-weighted index since 1970.

-19%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 →
142Routes 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 American Robin 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 American Robin in Oregon. See the full index history below.

American Robin Population Forecast in Oregon

If the recent trend holds, American Robin in Oregon is projected to stay roughly flat through 2029, near 25 (95% range 14–35). A 5-year backtest shows a typical error of ±9.5%, with 100% of held-out values landing inside the 95% band.

+2%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 →
25Projected 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 →
14–3595% 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 →
±9.5%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, American Robin in Oregon is projected to stay roughly flat through 2029, near 25 (95% range 14–35). A 5-year backtest shows a typical error of ±9.5%, with 100% 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 →
2025261536
2026251536
2027251436
2028251435
2029251435

American Robin Survey Routes in Oregon

Routes recording American Robin 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 →
Dayton9720241973
Sandy River9720061993
Garfield8420231973
Hells Canyon7120221992
Adair6820241971
Donnelly6820061994
Canby6720241993
Ochoco6519821972
Svensen6219921990
Nicolai Mtn.6120241993
Tualatin6020241968
Salem5920241993
Molalla5920241994
Newbridge5820241992
Paisley5620241973
Monument5520241993
Elkton5420241972
Barnes Val5119871971
Barnhouse5120241998
Mt Hood4920241972
Lakeview4620241996
Scappoose4620231995
Deschutes4520241968
Desolation4520071993
Santiam4420241994

American Robin 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.