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

House Finch Population Trend in Wisconsin

All statesGeneralists

House Finch in Wisconsin has surged: up 44× on the route-weighted index since 1990.

44×Since 1990TrendPercent 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 →
90Routes 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 →
36YearsYears 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 WisconsinNotable 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 Wisconsin: up 44× on the route-weighted index since 1990.

House Finch Population Forecast in Wisconsin

If the recent trend holds, House Finch in Wisconsin is projected to stay roughly flat through 2029, near 4.1 (95% range 0.20–8.0). A 5-year backtest shows a typical error of ±14.8%, with 100% of held-out values landing inside the 95% band.

+8%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 →
4.1Projected 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 →
0.20–8.095% 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 →
±14.8%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, House Finch in Wisconsin is projected to stay roughly flat through 2029, near 4.1 (95% range 0.20–8.0). A 5-year backtest shows a typical error of ±14.8%, with 100% of held-out values landing inside the 95% band.19882029
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 →
20254.10.168.0
20264.10.178.0
20274.10.188.0
20284.10.198.0
20294.10.208.0

House Finch Survey Routes in Wisconsin

Routes recording House Finch in Wisconsin.
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 →
Omro3520011991
Raymond2920241991
Kiel2520221998
Fall River2220241992
Mukwonago2220041998
Eden2020241989
Verona2020241991
Pt Washingtn1920241990
Manitowoc1820241991
N Freedom1520241993
Brownsville1520241993
Casco1320241994
Omro 21320242002
Mukwonago 21320242005
Pardeeville1220241991
Viroqua1120241993
Paris1120241989
Holland1120241998
Hebron720241993
Grimms720211998
Rib Lake620241994
Stratford620241993
Saxeville620241991
Gresham620241998
Cochrane520231994

House Finch Population Trend in Other States

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

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