BirdAnalyst
Species · BCR 34 · BBS 2025 Release · 1966–2024

Turkey Vulture In Sierra Madre Occidental

All regionsSierra Madre OccidentalGeneralists

Turkey Vulture in Sierra Madre Occidental has declined: down 36% on the route-weighted index since 1970.

-36%Since 1970
36Routes In Region
56Years

Notable Signals

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

Forecast

If the recent trend holds, Turkey Vulture in Sierra Madre Occidental is projected to fall about 37% by 2029 — from 7.4 in 2024 to a central estimate of 4.7 (95% range 0.00–14). A 5-year backtest shows a typical error of ±35.2%, with 100% of held-out values landing inside the 95% band.

-37%Change by 2029
4.7Projected 2029 index
0.00–1495% range
±35.2%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
20254.90.0015
20264.80.0014
20274.80.0014
20284.70.0014
20294.70.0014

Routes In Sierra Madre Occidental

Routes recording Turkey Vulture in Sierra Madre Occidental.
PomereneARIZONA602024
CutterARIZONA202014
PatagoniaARIZONA122024
Carr MtnARIZONA122024
AmadoARIZONA112023
Sunizona 2ARIZONA112024
PortalARIZONA92024
FlagstaffARIZONA72022
San SimonARIZONA72024
Peña BlancaARIZONA72024
SunizonaARIZONA71997
Mt. GrahamARIZONA72022
Mormon LakeARIZONA61974
RedingtonARIZONA62023
AlpineARIZONA52023
Clay SpringARIZONA52024
PrescottARIZONA42021
WilliamsARIZONA32019
Tonto Vill.ARIZONA32021
PinetopARIZONA32022
Vicks PeakNEW-MEXICO32024
Emory PassNEW-MEXICO32024
Aztec PeakARIZONA21978
BlueARIZONA21990
SprucedaleARIZONA22023

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