BirdAnalyst
Species · BCR 15 · BBS 2025 Release · 1966–2024

Green-tailed Towhee In Sierra Nevada

All regionsSierra NevadaGeneralists

Green-tailed Towhee in Sierra Nevada has increased: up 43% on the route-weighted index since 1970.

+43%Since 1970
36Routes In Region
56Years

Notable Signals

No notable trend signals for Green-tailed Towhee in Sierra Nevada. See the full index history below.

Forecast

If the recent trend holds, Green-tailed Towhee in Sierra Nevada is projected to rise about 17% by 2029 — from 4.4 in 2024 to a central estimate of 5.1 (95% range 1.8–8.4). A 5-year backtest shows a typical error of ±17.1%, with 100% of held-out values landing inside the 95% band.

+17%Change by 2029
5.1Projected 2029 index
1.8–8.495% range
±17.1%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
20255.01.78.4
20265.11.78.4
20275.11.78.4
20285.11.88.4
20295.11.88.4

Routes In Sierra Nevada

Routes recording Green-tailed Towhee in Sierra Nevada.
Little TruckeeCALIFORNIA232023
Pine MountainCALIFORNIA222017
Eagle LakeCALIFORNIA202024
Last ChanceCALIFORNIA192019
ChilcootCALIFORNIA182024
WestvilleCALIFORNIA122024
DardanelleCALIFORNIA112019
JohnsvilleCALIFORNIA112024
CrestviewCALIFORNIA102024
WoodfordsCALIFORNIA62024
Cottage SpgsCALIFORNIA51968
Meadow ValleyCALIFORNIA42023
Bass LakeCALIFORNIA22019
LumberyardCALIFORNIA22024
Greenhorn MtCALIFORNIA22008
Silver CityCALIFORNIA21993
SattleyCALIFORNIA22019
DownievilleCALIFORNIA22013
RivertonCALIFORNIA22023
Hat CreekCALIFORNIA22018
LakeshoreCALIFORNIA22024
Tahoe NfCALIFORNIA21994
ChesterCALIFORNIA22017
PaxtonCALIFORNIA22023
Lassen ParkCALIFORNIA11988

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