BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Turkey Vulture In Coastal California

All regionsCoastal CaliforniaGeneralists

Turkey Vulture in Coastal California has surged: up 172% on the route-weighted index since 1970.

+172%Since 1970
104Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Turkey Vulture has surged in Coastal California: up 172% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Turkey Vulture in Coastal California is projected to rise about 13% by 2029 — from 8.1 in 2024 to a central estimate of 9.2 (95% range 7.3–11). A 5-year backtest shows a typical error of ±12.1%, with 100% of held-out values landing inside the 95% band.

+13%Change by 2029
9.2Projected 2029 index
7.3–1195% range
±12.1%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
20258.76.911
20268.87.011
20278.97.111
20289.07.211
20299.27.311

Routes In Coastal California

Routes recording Turkey Vulture in Coastal California.
Yolla BollyCALIFORNIA372024
Tres Pinos 2CALIFORNIA352011
OnoCALIFORNIA322012
AdelaidaCALIFORNIA322024
CoyoteCALIFORNIA322024
SisquocCALIFORNIA302014
Lake BerryessaCALIFORNIA262024
GlennCALIFORNIA252023
Gold HillCALIFORNIA242024
Mark WestCALIFORNIA232024
MoragaCALIFORNIA212024
Tres PinosCALIFORNIA192002
South LakeCALIFORNIA172006
Tracy 2CALIFORNIA172023
ParkfieldCALIFORNIA162024
Point ReyesCALIFORNIA162023
Hollister 2CALIFORNIA162024
Collegeville 2CALIFORNIA152014
PenningtonCALIFORNIA142024
AuburnCALIFORNIA141980
Glen EllenCALIFORNIA142004
PolomaCALIFORNIA132024
HughsonCALIFORNIA122024
Morro BayCALIFORNIA112019
OrovilleCALIFORNIA112024

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