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

European Starling In Great Basin

All regionsGreat BasinGeneralists

European Starling in Great Basin has increased: up 25% on the route-weighted index since 1970.

+25%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 →
229Routes 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 European Starling in Great Basin. See the full index history below.

European Starling In Great Basin Population Forecast

If the recent trend holds, European Starling in Great Basin is projected to rise about 18% by 2030 — from 24 in 2025 to a central estimate of 28 (95% range 16–41). A 5-year backtest shows a typical error of ±38.1%, with 100% of held-out values landing inside the 95% band.

+18%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 →
28Projected 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 →
16–4195% 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 →
±38.1%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, European Starling in Great Basin is projected to rise about 18% by 2030 — from 24 in 2025 to a central estimate of 28 (95% range 16–41). A 5-year backtest shows a typical error of ±38.1%, with 100% 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 →
2026291641
2027281641
2028281641
2029281641
2030281641

Routes In Great Basin

Routes recording European Starling 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 →
CedarvilleCALIFORNIA3672025
MerrillOREGON3432022
WapatoWASHINGTON3162022
PomonaWASHINGTON2681999
Glenns FerryIDAHO2531986
PocatelloIDAHO2162019
OrdnanceOREGON2031979
GardnervilleNEVADA1882012
Scootney ReservoirWASHINGTON1772025
FallonNEVADA1702025
HarwoodWASHINGTON1681997
GoshenUTAH1652025
UmatillaOREGON1632025
Mud LakeIDAHO1622025
Gardnerville 2NEVADA1572025
Columbia NwrWASHINGTON1532022
EwanWASHINGTON1512019
KeystoneWASHINGTON1502025
MesaWASHINGTON1422008
DorrisCALIFORNIA1372019
RirieIDAHO1352025
Cedar HillIDAHO1322024
NubieberCALIFORNIA1272018
Timpie SpgUTAH1172003
Toiyabe NfNEVADA1052024

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