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

American Goldfinch Population Trend in Missouri

All statesForest birds

American Goldfinch in Missouri has held roughly steady: up 7% on the route-weighted index since 1969.

+7%Since 1969TrendPercent 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 →
58YearsYears 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 Goldfinch Trends in MissouriNotable 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 Goldfinch in Missouri. See the full index history below.

American Goldfinch Population Forecast in Missouri

If the recent trend holds, American Goldfinch in Missouri is projected to rise about 27% by 2030 — from 6.9 in 2025 to a central estimate of 8.7 (95% range 6.1–11). A 5-year backtest shows a typical error of ±28.3%, with 100% of held-out values landing inside the 95% band.

+27%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 →
8.7Projected 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 →
6.1–1195% 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 →
±28.3%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 Goldfinch in Missouri is projected to rise about 27% by 2030 — from 6.9 in 2025 to a central estimate of 8.7 (95% range 6.1–11). A 5-year backtest shows a typical error of ±28.3%, with 100% of held-out values landing inside the 95% band.19672030
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 →
20268.55.811
20278.55.911
20288.65.911
20298.66.011
20308.76.111

American Goldfinch Survey Routes in Missouri

Routes recording American Goldfinch in Missouri.
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 →
Syracuse3820241969
Cascade2020251967
Madison2020241971
Trenton1920251967
Peace Valley1620251975
Centertown1620251974
Graniteville1620251982
Sticklervill1520251970
Kirksville1520251994
Doe Run1520252015
Frazier1420241967
Osage Beach1420251997
New Hampton1420252014
Crane1320251994
Miller1320252014
Frankford1220251985
Diamond1220252015
Bolckow1119921967
Whitewater1120251996
Norborne1120232006
Queen City1120222017
Moselle1120252000
Sweden1020251968
Cassville1020251967
Cp Girardeau1020251967

American Goldfinch Population Trend in Other States

alabamaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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