BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

House Finch In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

House Finch in Badlands and Prairies has surged: up 151% on the route-weighted index since 1982.

+151%Since 1982TrendPercent 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 →
35Routes 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 →
41YearsYears 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 Badlands and Prairies: up 151% on the route-weighted index since 1982.

House Finch In Badlands and Prairies Population Forecast

If the recent trend holds, House Finch in Badlands and Prairies is projected to stay roughly flat through 2029, near 0.19 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±176.2%, 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 →
0.19Projected 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 →
0.00–0.4095% 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 →
±176.2%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 Badlands and Prairies is projected to stay roughly flat through 2029, near 0.19 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±176.2%, with 100% of held-out values landing inside the 95% band.19702029
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 →
20250.180.000.39
20260.180.000.39
20270.180.000.39
20280.180.000.40
20290.190.000.40

Routes In Badlands and Prairies

Routes recording House Finch in Badlands and Prairies.
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 →
RosebudSOUTH-DAKOTA72007
DwyerWYOMING61995
Dunn CenterNORTH-DAKOTA41997
ForsythMONTANA32019
Reed PointMONTANA32024
BowmanNORTH-DAKOTA32022
ZapNORTH-DAKOTA32011
CusterSOUTH-DAKOTA32019
MayoworthWYOMING32024
NewcastleWYOMING32024
Oglala Nat. Grass.NEBRASKA22011
OwankaSOUTH-DAKOTA22013
Cedar PassSOUTH-DAKOTA21996
LacreekSOUTH-DAKOTA22006
BillWYOMING21999
DaytonWYOMING22024
ArvadaWYOMING22022
MeadowdaleWYOMING21983
WelchWYOMING22002
HighwoodMONTANA12017
Dinosaurs H.M.MONTANA12018
CrookstonNEBRASKA12019
Ft YatesNORTH-DAKOTA11998
GorhamNORTH-DAKOTA12016
Cedar CreekNORTH-DAKOTA11996

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