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

House Finch Population Trend in Indiana

All statesGeneralists

House Finch in Indiana has surged: up 979% on the route-weighted index since 1988.

+979%Since 1988TrendPercent 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 →
68Routes 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 →
38YearsYears 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 IndianaNotable 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 Indiana: up 979% on the route-weighted index since 1988.

House Finch Population Forecast in Indiana

If the recent trend holds, House Finch in Indiana is projected to fall about 12% by 2029 — from 6.1 in 2024 to a central estimate of 5.4 (95% range 0.00–11). A 5-year backtest shows a typical error of ±21.1%, with 100% of held-out values landing inside the 95% band.

-12%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 →
5.4Projected 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 →
0.00–1195% 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 →
±21.1%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 Indiana is projected to fall about 12% by 2029 — from 6.1 in 2024 to a central estimate of 5.4 (95% range 0.00–11). A 5-year backtest shows a typical error of ±21.1%, with 100% of held-out values landing inside the 95% band.19852029
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 →
20255.50.0011
20265.50.0011
20275.50.0011
20285.40.0011
20295.40.0011

House Finch Survey Routes in Indiana

Routes recording House Finch in Indiana.
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 →
Plainfield3619991999
South Bend2719911989
Evansville2720191988
Brookville2520241989
Maplewood2320212000
Anderson2120242000
Middlebury1720241991
Packertown1720041990
Portage 21720242005
Tipton1619921988
Celestine1620241989
Hebron1420221989
Laporte1420241999
New Phila1320241988
Kewanna1220221989
Muncie1219971988
Friendswood1120241988
Witts Station1120242000
Monticello1020241987
Wabash1020241988
Washington1020241987
Thorntown920241988
Spencer920241989
Cyprss920241999
Galveston820241988

House Finch Population Trend in Other States

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

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