BirdAnalyst
Species · West Virginia · BBS 2026 Release · 1966–2025

House Finch Population Trend in West Virginia

All statesGeneralists

House Finch in West Virginia has surged: up 789% on the route-weighted index since 1982.

+789%Since 1982TrendPercent 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 →
60Routes 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 →
45YearsYears 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 West VirginiaNotable 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 West Virginia: up 789% on the route-weighted index since 1982.

House Finch Population Forecast in West Virginia

If the recent trend holds, House Finch in West Virginia is projected to fall about 14% by 2030 — from 2.6 in 2025 to a central estimate of 2.3 (95% range 0.00–5.4). A 5-year backtest shows a typical error of ±10.9%, with 100% of held-out values landing inside the 95% band.

-14%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 →
2.3Projected 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 →
0.00–5.495% 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 →
±10.9%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 West Virginia is projected to fall about 14% by 2030 — from 2.6 in 2025 to a central estimate of 2.3 (95% range 0.00–5.4). A 5-year backtest shows a typical error of ±10.9%, with 100% of held-out values landing inside the 95% band.19802030
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 →
20262.30.005.5
20272.30.005.4
20282.30.005.4
20292.30.005.4
20302.30.005.4

House Finch Survey Routes in West Virginia

Routes recording House Finch in West Virginia.
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 →
Sleepy Creek2819901981
Clendenin1420251993
Martinsburg1320251981
Fayetteville1119961989
Slate1120251987
Shanghai1120251995
Hix920251986
Olcott920241993
Ringgold920252025
Rockport820251981
Yawkey720241995
Monongah620191983
Bebee620251980
Hubbardstown520251994
Henderson520222005
Pt Pleasant420251993
Richwood420231985
Smithfield420251996
Smoot320221993
Ghent320241982
Hanover320251984
Welch320212005
Green Bank320241984
Rio319951981
Ruthbelle320251982

House Finch Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwisconsinwyoming

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