BirdAnalyst
Species · West Virginia · BBS 2025 Release · 1966–2024

House Finch Population Trend in West Virginia

All statesGeneralists

House Finch in West Virginia has surged: up 754% on the route-weighted index since 1982.

+754%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 →
59Routes 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 →
44YearsYears 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 754% 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 28% by 2029 — from 3.1 in 2024 to a central estimate of 2.2 (95% range 0.00–5.4). A 5-year backtest shows a typical error of ±15.4%, with 100% of held-out values landing inside the 95% band.

-28%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 →
2.2Projected 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 →
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 →
±15.4%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 28% by 2029 — from 3.1 in 2024 to a central estimate of 2.2 (95% range 0.00–5.4). A 5-year backtest shows a typical error of ±15.4%, with 100% of held-out values landing inside the 95% band.19802029
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 →
20252.30.005.5
20262.30.005.5
20272.30.005.5
20282.30.005.4
20292.20.005.4

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
Paradise1920231986
Ruthbelle1720241982
Martinsburg1620241981
Clendenin1120241993
Fayetteville1119961989
Slate1120241987
Olcott920241993
Hubbardstown820231994
Hix720241986
Yawkey720241995
Rockport620241981
Monongah620191983
Henderson520222005
Shanghai520221995
Richwood420231985
Smoot320221993
Ghent320241982
Hanover320241984
Clear Creek320241995
Welch320212005
Sutton320241989
Green Bank320241984
Mo Of Seneca320171988
Rio319951981

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 2026-05-22.