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

House Finch Population Trend in Nevada

All statesGeneralists

House Finch in Nevada has surged: up 104% on the route-weighted index since 1970.

+104%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 →
51Routes 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 →
51YearsYears 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 NevadaNotable 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 Nevada: up 104% on the route-weighted index since 1970.

House Finch Population Forecast in Nevada

If the recent trend holds, House Finch in Nevada is projected to rise about 13% by 2030 — from 8.0 in 2025 to a central estimate of 9.0 (95% range 3.7–14). A 5-year backtest shows a typical error of ±27.5%, with 100% of held-out values landing inside the 95% band.

+13%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 →
9.0Projected 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 →
3.7–1495% 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 →
±27.5%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, House Finch in Nevada is projected to rise about 13% by 2030 — from 8.0 in 2025 to a central estimate of 9.0 (95% range 3.7–14). A 5-year backtest shows a typical error of ±27.5%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20268.63.314
20278.73.414
20288.83.514
20298.93.614
20309.03.714

House Finch Survey Routes in Nevada

Routes recording House Finch in Nevada.
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 →
Fallon4220251992
Hawthorne3720011997
Meadow Vally3120251996
Nelson2820251995
Alamo2419731968
Gardnerville2320121994
Carson River2120052001
Gardnerville 21320252013
Toiyabe Nf1220241987
Hiko1020251968
Val Of Fire1020251987
Illipah820101968
Bald Mtn.820251992
Thorne719701970
Caliente720251988
Piute Mdws620252013
Comins Lake620162006
Jarbidge620141997
Ruby Valley620011997
Oreana620032002
Silver Peak 2620242017
Eureka520021968
Silver Peak520061973
Rye Patch419871974
Walker Can420241969

House Finch Population Trend in Other States

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

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