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

American Goldfinch Population Trend in Wyoming

All statesGeneralists

American Goldfinch in Wyoming has increased: up 43% on the route-weighted index since 1970.

+43%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 →
92Routes 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 Goldfinch Trends in WyomingNotable 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 Wyoming. See the full index history below.

American Goldfinch Population Forecast in Wyoming

If the recent trend holds, American Goldfinch in Wyoming is projected to stay roughly flat through 2029, near 1.8 (95% range 1.0–2.5). A 5-year backtest shows a typical error of ±29.8%, with 100% of held-out values landing inside the 95% band.

+1%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 →
1.8Projected 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 →
1.0–2.595% 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 →
±29.8%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 Wyoming is projected to stay roughly flat through 2029, near 1.8 (95% range 1.0–2.5). A 5-year backtest shows a typical error of ±29.8%, 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 →
20251.70.972.5
20261.70.992.5
20271.81.02.5
20281.81.02.5
20291.81.02.5

American Goldfinch Survey Routes in Wyoming

Routes recording American Goldfinch in Wyoming.
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 →
Meeteetse1620241992
Dayton1220241980
Sundance1020241976
Otto920241970
Clark920241990
Sweetwater820091980
Fletcher Pk820241979
Wyarno720241976
Arvada720241983
Sybille Cyn720151990
Moskee 3720242022
Dubois620241982
Seely620001990
Buckskin Mtn620172003
Harmony620231982
Cody520241983
Brookhurst520191968
Riverside520241968
Lovell520241989
Wilson520241980
Anchor520162002
Moskee 2520212002
Midvale420241987
Yoder420091969
Recluse420221988

American Goldfinch Population Trend in Other States

alabamaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

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