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

House Finch Population Trend in Utah

All statesGeneralists

House Finch in Utah has surged: up 609% on the route-weighted index since 1970.

+609%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 →
101Routes 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 →
55YearsYears 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 UtahNotable 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 Utah: up 609% on the route-weighted index since 1970.

House Finch Population Forecast in Utah

If the recent trend holds, House Finch in Utah is projected to stay roughly flat through 2029, near 5.5 (95% range 3.1–8.0). A 5-year backtest shows a typical error of ±21.5%, with 100% of held-out values landing inside the 95% band.

-9%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 →
5.5Projected 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 →
3.1–8.095% 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 →
±21.5%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 Utah is projected to stay roughly flat through 2029, near 5.5 (95% range 3.1–8.0). A 5-year backtest shows a typical error of ±21.5%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20255.32.87.7
20265.32.97.8
20275.42.97.9
20285.53.07.9
20295.53.18.0

House Finch Survey Routes in Utah

Routes recording House Finch in Utah.
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 →
Aneth7920241986
Canyonlands7320061991
Moab6520241986
Newcastle2920221997
Moquith Mtn2820241987
Hite2020231987
Shivwitz2020241992
Kamas1920242000
Notom1520241987
Hatch1420241994
Cleveland1320241994
Richfield1320192002
Wellington1220021997
Delta1120231996
Leamington1120171992
Oak City1020241974
Desert View1020241987
Boulder1020191974
Hardware Ranch1020232006
Glen Canyon920241991
Goose Creek Mtn.920231997
Monticello920151999
Arches Np920111989
Hyrum819751975
Blanding820241997

House Finch Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming

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