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Species · Kansas · BBS 2026 Release · 1966–2025

American Goldfinch Population Trend in Kansas

All statesForest birds

American Goldfinch in Kansas has held roughly steady: down 4% on the route-weighted index since 1969.

-4%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 →
63Routes 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 KansasNotable 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 Kansas. See the full index history below.

American Goldfinch Population Forecast in Kansas

If the recent trend holds, American Goldfinch in Kansas is projected to stay roughly flat through 2030, near 4.3 (95% range 1.9–6.6). A 5-year backtest shows a typical error of ±13.5%, with 100% 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 →
4.3Projected 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 →
1.9–6.695% 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 →
±13.5%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 Goldfinch in Kansas is projected to stay roughly flat through 2030, near 4.3 (95% range 1.9–6.6). A 5-year backtest shows a typical error of ±13.5%, 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 →
20264.11.86.5
20274.21.86.5
20284.21.86.5
20294.21.96.6
20304.31.96.6

American Goldfinch Survey Routes in Kansas

Routes recording American Goldfinch in Kansas.
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 →
Trading Post2320252000
Kanopolis1320251967
Lincolnville1220242002
Le Loup1020212000
Wellington920251968
Olathe920211967
Rock Creek920191968
Melrose820211967
Wreford820241967
Minneapolis820191967
Humboldt720221968
Buckeye720231967
Reece720252000
Severance720252000
Ellinor620251967
Jewell620051967
Jewell 2620252006
Pittsburg620212001
Olsburg620252000
Jamestown620252000
Seneca520221967
Hollenberg520251969
Bucyrus520252022
Lapland420181975
Dalton420251968

American Goldfinch Population Trend in Other States

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

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