BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

American Goldfinch In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

American Goldfinch in Southern Rockies / Colorado Plateau has surged: up 258% on the route-weighted index since 1970.

+258%Since 1970
124Routes In Region
56Years

Notable Signals

long arc increasecomputed index

American Goldfinch has surged in Southern Rockies / Colorado Plateau: up 258% on the route-weighted index since 1970.

Forecast

If the recent trend holds, American Goldfinch in Southern Rockies / Colorado Plateau is projected to rise about 93% by 2029 — from 0.45 in 2024 to a central estimate of 0.87 (95% range 0.07–1.7). A 5-year backtest shows a typical error of ±44.5%, with 100% of held-out values landing inside the 95% band.

+93%Change by 2029
0.87Projected 2029 index
0.07–1.795% range
±44.5%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
20250.860.071.7
20260.860.071.7
20270.870.071.7
20280.870.071.7
20290.870.071.7

Routes In Southern Rockies / Colorado Plateau

Routes recording American Goldfinch in Southern Rockies / Colorado Plateau.
YampaCOLORADO612023
Dolores RivCOLORADO102017
Ant Flat-Ogden CanUTAH102023
La SalUTAH101993
Cheesman LkCOLORADO92024
ThomasvilleCOLORADO91993
Blackhead PkCOLORADO82021
Dixie NfUTAH81998
Fletcher PkWYOMING82024
FlattopsCOLORADO72006
Sybille CynWYOMING72015
Buffalo ParkCOLORADO62023
Rifle FallsCOLORADO62021
DoloresCOLORADO51987
Deadman Rd.COLORADO52024
BrookhurstWYOMING52019
ColonaCOLORADO41987
NotomUTAH41995
Moon Lake 2UTAH42023
Lost Cr. ResUTAH42015
Douglas PassCOLORADO32024
AlamosaCOLORADO32022
CortezCOLORADO32008
Dunckley PasCOLORADO32024
Yellowjacket PassCOLORADO32024

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