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

Common Yellowthroat Population Trend in Oregon

All statesForest birds

Common Yellowthroat in Oregon has surged: up 612% on the route-weighted index since 1970.

+612%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 →
93Routes 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 Common Yellowthroat 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 →

Common Yellowthroat has surged in Oregon: up 612% on the route-weighted index since 1970.

Common Yellowthroat Population Forecast in Oregon

If the recent trend holds, Common Yellowthroat in Oregon is projected to rise about 43% by 2029 — from 2.4 in 2024 to a central estimate of 3.5 (95% range 2.3–4.6). A 5-year backtest shows a typical error of ±25.9%, with 100% of held-out values landing inside the 95% band.

+43%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 →
3.5Projected 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 →
2.3–4.695% 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 →
±25.9%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, Common Yellowthroat in Oregon is projected to rise about 43% by 2029 — from 2.4 in 2024 to a central estimate of 3.5 (95% range 2.3–4.6). A 5-year backtest shows a typical error of ±25.9%, 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 →
20253.32.24.5
20263.32.24.5
20273.42.24.5
20283.42.34.6
20293.52.34.6

Common Yellowthroat Survey Routes in Oregon

Routes recording Common Yellowthroat 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 →
Fish Lake3120241972
Adair2720241971
Chinchalo2220241993
Bridgeport2120221986
Nicolai Mtn.1820241993
Salem1520241993
Svensen1419921990
Elkton1120241972
Green1120242019
Scappoose1020231995
Umpqua920241970
Harney Lake820241993
Scio620241971
Dayton620241973
Lorane620241993
Riley Peak620162007
Garfield520231973
Canby520241993
Twickenham520242012
Molalla520241994
Salado420241976
Wedderburn420241972
Joseph420221971
Glasgow420241986
Waldport419991993

Common Yellowthroat 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.