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Species · BCR 19 · BBS 2026 Release · 1966–2025

House Finch In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieGeneralists

House Finch in Central Mixed Grass Prairie has surged: up 15× on the route-weighted index since 1969.

15×Since 1969TrendPercent 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 →
98Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Central Mixed Grass Prairie: up 15× on the route-weighted index since 1969.

House Finch In Central Mixed Grass Prairie Population Forecast

If the recent trend holds, House Finch in Central Mixed Grass Prairie is projected to rise about 25% by 2030 — from 1.8 in 2025 to a central estimate of 2.2 (95% range 1.4–3.1). A 5-year backtest shows a typical error of ±22.1%, with 100% of held-out values landing inside the 95% band.

+25%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 →
2.2Projected 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 →
1.4–3.195% 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 →
±22.1%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 Central Mixed Grass Prairie is projected to rise about 25% by 2030 — from 1.8 in 2025 to a central estimate of 2.2 (95% range 1.4–3.1). A 5-year backtest shows a typical error of ±22.1%, with 100% of held-out values landing inside the 95% band.19672030
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 →
20262.11.32.9
20272.11.33.0
20282.21.33.0
20292.21.43.0
20302.21.43.1

Routes In Central Mixed Grass Prairie

Routes recording House Finch in Central Mixed Grass Prairie.
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 →
EldoradoTEXAS252023
KenesawNEBRASKA142025
BeaverOKLAHOMA132003
WellingtonKANSAS92025
BradyNEBRASKA92025
St JohnKANSAS82018
WinchellTEXAS72025
ClarendonTEXAS72024
SilverTEXAS72025
DaltonKANSAS62025
LibertyNEBRASKA61997
BartleyNEBRASKA62025
StrattonNEBRASKA62025
SurpriseNEBRASKA62023
ArthurNEBRASKA62025
BerwetKANSAS52022
JohnstownNEBRASKA52025
VerdenOKLAHOMA52017
GrimesOKLAHOMA52025
PhrosoOKLAHOMA51999
Pear ValleyTEXAS52025
LakeviewTEXAS52019
HanoverKANSAS42022
Jewell 2KANSAS42007
GoesselKANSAS42025

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