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

Turkey Vulture In Sierra Nevada

All regionsSierra NevadaGeneralists

Turkey Vulture in Sierra Nevada has edged down: down 19% on the route-weighted index since 1972.

-19%Since 1972
32Routes In Region
54Years

Notable Signals

No notable trend signals for Turkey Vulture in Sierra Nevada. See the full index history below.

Forecast

If the recent trend holds, Turkey Vulture in Sierra Nevada is projected to fall about 20% by 2029 — from 1.2 in 2024 to a central estimate of 0.97 (95% range 0.12–1.8). A 5-year backtest shows a typical error of ±43.1%, with 100% of held-out values landing inside the 95% band.

-20%Change by 2029
0.97Projected 2029 index
0.12–1.895% range
±43.1%Backtest error
19702029
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
20250.940.091.8
20260.950.101.8
20270.950.101.8
20280.960.111.8
20290.970.121.8

Routes In Sierra Nevada

Routes recording Turkey Vulture in Sierra Nevada.
Last ChanceCALIFORNIA92014
Silver CityCALIFORNIA62013
WawonaCALIFORNIA62024
PaxtonCALIFORNIA52024
CoultervilleCALIFORNIA52012
Greenhorn MtCALIFORNIA42008
Hat CreekCALIFORNIA42014
Forest Hill 2CALIFORNIA42005
Bass LakeCALIFORNIA32019
WoodfordsCALIFORNIA32024
WestvilleCALIFORNIA22024
LumberyardCALIFORNIA22024
SattleyCALIFORNIA22024
Higgins CornCALIFORNIA22023
PlacervilleCALIFORNIA22023
ChilcootCALIFORNIA22023
Lassen ParkCALIFORNIA11974
Eagle LakeCALIFORNIA12024
Cottage SpgsCALIFORNIA11970
DardanelleCALIFORNIA12013
JohnsvilleCALIFORNIA12022
Tuolumne GroveCALIFORNIA12007
Butte MeadowCALIFORNIA12014
GeneseeCALIFORNIA12023
DownievilleCALIFORNIA12023

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