BirdAnalyst
Species · Wyoming · BBS 2026 Release · 1966–2025

Turkey Vulture Population Trend in Wyoming

All statesBirds of prey

Turkey Vulture in Wyoming has surged: up 239% on the route-weighted index since 1978.

+239%Since 1978TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
87Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
49YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Turkey Vulture Trends in WyomingNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Turkey Vulture has surged in Wyoming: up 239% on the route-weighted index since 1978.

Turkey Vulture Population Forecast in Wyoming

If the recent trend holds, Turkey Vulture in Wyoming is projected to rise about 121% by 2030 — from 0.67 in 2025 to a central estimate of 1.5 (95% range 0.94–2.0). A 5-year backtest shows a typical error of ±49.8%, with 60% of held-out values landing inside the 95% band.

+121%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
1.5Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.94–2.095% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±49.8%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Turkey Vulture in Wyoming is projected to rise about 121% by 2030 — from 0.67 in 2025 to a central estimate of 1.5 (95% range 0.94–2.0). A 5-year backtest shows a typical error of ±49.8%, with 60% of held-out values landing inside the 95% band.19752030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20261.40.841.9
20271.40.862.0
20281.40.892.0
20291.50.912.0
20301.50.942.0

Turkey Vulture Survey Routes in Wyoming

Routes recording Turkey Vulture in Wyoming.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Kaycee1820142014
Pine Bluff1820221990
Meeteetse1720232000
Seely1520001991
Raven920222022
Fletcher Pk920251979
Moskee820011982
Dayton620251983
Moskee 2520212002
Wilson420251983
Mayoworth420241991
Bucknum419971997
Sussex320252010
Newcastle320222021
Pathfinder320221987
Warbonnet320251992
Seely 2320252001
Gvnt Valley320251996
Carter 2320232023
Cody220242024
Otto220152014
Wyarno220212021
Midvale220252017
Ervay220252010
Cumberland220212018

Turkey Vulture Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.