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

House Finch Population Trend in Wyoming

All statesGeneralists

House Finch in Wyoming has surged: up 165% on the route-weighted index since 1973.

+165%Since 1973TrendPercent 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 →
66Routes 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 →
53YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable House Finch 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 →

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 →

House Finch has surged in Wyoming: up 165% on the route-weighted index since 1973.

House Finch Population Forecast in Wyoming

If the recent trend holds, House Finch in Wyoming is projected to fall about 100% by 2030 — from 0.45 in 2025 to a central estimate of 0.00 (95% range 0.00–3.6). A 5-year backtest shows a typical error of ±188.6%, with 100% of held-out values landing inside the 95% band.

-100%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 →
0.00Projected 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 →
0.00–3.695% 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 →
±188.6%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, House Finch in Wyoming is projected to fall about 100% by 2030 — from 0.45 in 2025 to a central estimate of 0.00 (95% range 0.00–3.6). A 5-year backtest shows a typical error of ±188.6%, with 100% of held-out values landing inside the 95% band.19702030
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 →
20260.000.003.6
20270.000.003.6
20280.000.003.6
20290.000.003.6
20300.000.003.6

House Finch Survey Routes in Wyoming

Routes recording House Finch 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 →
Fox Park2619961996
Sybille Cyn1719931993
Lingle1620241980
Yoder620251971
Moose619891988
Meeteetse620251991
Carter 2620222017
Tensleep520251995
Soda Lake520211980
Lovell420242006
Mtn View420061980
Cheyenne420251986
Basin320251989
Nowood320022002
Fontenelle320251984
Horse Creek320112011
Mayoworth320241982
Newcastle320252022
Diamondville319791978
Bill219991999
Savery219891989
Frannie220252000
Dayton220241994
Arvada220221988
Wilson220192019

House Finch Population Trend in Other States

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

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