BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Lesser Goldfinch In Great Basin

All regionsGreat BasinGeneralists

Lesser Goldfinch in Great Basin has surged: up 479% on the route-weighted index since 1970.

+479%Since 1970
72Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Lesser Goldfinch has surged in Great Basin: up 479% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Lesser Goldfinch in Great Basin is projected to rise about 235% by 2029 — from 0.35 in 2024 to a central estimate of 1.2 (95% range 0.53–1.8). A 5-year backtest shows a typical error of ±275.6%, with 20% of held-out values landing inside the 95% band.

+235%Change by 2029
1.2Projected 2029 index
0.53–1.895% range
±275.6%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20251.10.461.7
20261.10.471.8
20271.10.491.8
20281.20.511.8
20291.20.531.8

Routes In Great Basin

Routes recording Lesser Goldfinch in Great Basin.
Iron GateCALIFORNIA512019
GiffordIDAHO502017
Gardnerville 2NEVADA352018
MacdoelCALIFORNIA342019
GardnervilleNEVADA172012
NewcastleUTAH152022
SnowdenWASHINGTON122024
DorrisCALIFORNIA112019
Meadow VallyNEVADA102024
HackamoreCALIFORNIA92010
DeschutesOREGON82024
Modoc PointOREGON82018
Fall River MillsCALIFORNIA72011
PocatelloIDAHO72019
TionestaCALIFORNIA62021
WillisNEVADA62019
NubieberCALIFORNIA52018
FallonNEVADA52024
Modoc Point 2OREGON52024
Clear Lk ResCALIFORNIA42018
Medicine Mtn.CALIFORNIA42006
JoelIDAHO42024
AustinNEVADA42017
Iron SpringsUTAH42018
Hardware RanchUTAH32023

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