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

Green-tailed Towhee In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Green-tailed Towhee in Southern Rockies / Colorado Plateau has surged: up 136% on the route-weighted index since 1970.

+136%Since 1970
181Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Green-tailed Towhee has surged in Southern Rockies / Colorado Plateau: up 136% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Green-tailed Towhee in Southern Rockies / Colorado Plateau is projected to rise about 32% by 2029 — from 8.3 in 2024 to a central estimate of 11 (95% range 8.2–14). A 5-year backtest shows a typical error of ±33%, with 40% of held-out values landing inside the 95% band.

+32%Change by 2029
11Projected 2029 index
8.2–1495% range
±33%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
2025117.713
2026117.813
2027117.914
2028118.114
2029118.214

Routes In Southern Rockies / Colorado Plateau

Routes recording Green-tailed Towhee in Southern Rockies / Colorado Plateau.
YampaCOLORADO962023
AltonahUTAH732015
Mesaverde NpCOLORADO642024
Beck 2UTAH622018
Lost Cr. ResUTAH562018
Sybille CynWYOMING552024
Fish Lake NfUTAH532024
Douglas PassCOLORADO522024
AngoraCOLORADO432024
UncompahgreCOLORADO422024
BeckUTAH411987
PowderhornCOLORADO402023
Baxter PassCOLORADO392024
Mcphee Res.COLORADO372024
Black Sulphur CrCOLORADO342024
Grizzly RdgeUTAH342024
Wilson CreekCOLORADO312024
Moon Lake 2UTAH292023
Yellowjacket PassCOLORADO272024
PaoniaCOLORADO262024
DinosaurCOLORADO262024
RichfieldUTAH262019
Ant Flat-Ogden CanUTAH252023
CastletonCOLORADO242024
DoylevilleCOLORADO242024

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