BirdAnalyst
Species · BCR 9 · BBS 2026 Release · 1966–2025

House Finch In Great Basin

All regionsGreat BasinGeneralists

House Finch in Great Basin has held roughly steady: up 3% on the route-weighted index since 1970.

+3%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 →
218Routes 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 →

No notable trend signals for House Finch in Great Basin. See the full index history below.

House Finch In Great Basin Population Forecast

If the recent trend holds, House Finch in Great Basin is projected to rise about 25% by 2030 — from 5.9 in 2025 to a central estimate of 7.4 (95% range 5.0–9.8). A 5-year backtest shows a typical error of ±53.1%, with 0% 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 →
7.4Projected 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 →
5.0–9.895% 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 →
±53.1%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 Great Basin is projected to rise about 25% by 2030 — from 5.9 in 2025 to a central estimate of 7.4 (95% range 5.0–9.8). A 5-year backtest shows a typical error of ±53.1%, with 0% of held-out values landing inside the 95% band.19682030
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 →
20267.34.89.7
20277.34.99.7
20287.34.99.8
20297.44.99.8
20307.45.09.8

Routes In Great Basin

Routes recording House Finch in Great Basin.
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 →
DorrisCALIFORNIA1812019
Scootney ReservoirWASHINGTON882025
WapatoWASHINGTON762022
MesaWASHINGTON672008
PocatelloIDAHO482019
PotholesWASHINGTON442023
PomonaWASHINGTON431999
FallonNEVADA422025
QuincyWASHINGTON402024
HawthorneNEVADA372001
NighthawkWASHINGTON362025
DeschutesOREGON342025
TwispWASHINGTON322024
Iron GateCALIFORNIA312019
Meadow VallyNEVADA312025
RirieIDAHO302025
YakimaWASHINGTON292025
LikelyCALIFORNIA252025
Iron SpringsIDAHO252010
Moses LakeWASHINGTON242022
Big PineCALIFORNIA232025
BodieCALIFORNIA232025
GardnervilleNEVADA232012
VernonUTAH222025
Carson RiverNEVADA212005

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