BirdAnalyst
Species · BCR 18 · BBS 2026 Release · 1966–2025

House Finch In Shortgrass Prairie

All regionsShortgrass PrairieGeneralists

House Finch in Shortgrass Prairie has surged: up 347% on the route-weighted index since 1969.

+347%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 →
127Routes 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 →
58YearsYears 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 Shortgrass Prairie: up 347% on the route-weighted index since 1969.

House Finch In Shortgrass Prairie Population Forecast

If the recent trend holds, House Finch in Shortgrass Prairie is projected to stay roughly flat through 2030, near 3.8 (95% range 1.8–5.7). A 5-year backtest shows a typical error of ±94.6%, with 40% of held-out values landing inside the 95% band.

+3%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 →
3.8Projected 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 →
1.8–5.795% 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 →
±94.6%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 Shortgrass Prairie is projected to stay roughly flat through 2030, near 3.8 (95% range 1.8–5.7). A 5-year backtest shows a typical error of ±94.6%, with 40% 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 →
20263.61.65.5
20273.61.65.6
20283.71.75.6
20293.71.75.7
20303.81.85.7

Routes In Shortgrass Prairie

Routes recording House Finch in Shortgrass 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 →
LeotiKANSAS482006
CactusTEXAS391994
PantexTEXAS352025
ElbertCOLORADO292025
WinkTEXAS281986
PecosTEXAS272017
KimballNEBRASKA182025
SaragosaTEXAS182025
LingleWYOMING162024
BennettCOLORADO132025
AgateNEBRASKA131985
NunnCOLORADO122025
FloydNEW-MEXICO122025
RankinTEXAS122025
StilesTEXAS122025
MentoneTEXAS112015
RushCOLORADO102025
GilpinCOLORADO102011
BrownsonNEBRASKA102025
SkellytownTEXAS102017
EdisonCOLORADO92025
Cooley LakeNEW-MEXICO92025
SabinosoNEW-MEXICO92021
Prospect ValCOLORADO82000
TimpasCOLORADO72019

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