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Species · Wyoming · BBS 2025 Release · 1966–2024

Ring-necked Pheasant Population Trend in Wyoming

All statesGrassland birds

Ring-necked Pheasant in Wyoming has fallen sharply: down 67% on the route-weighted index since 1970.

-67%Since 1970TrendPercent 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 →
49Routes 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 →
56YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Ring-necked Pheasant 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 declinecomputed 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 →

Ring-necked Pheasant has fallen sharply in Wyoming: down 67% on the route-weighted index since 1970.

Ring-necked Pheasant Population Forecast in Wyoming

If the recent trend holds, Ring-necked Pheasant in Wyoming is projected to fall about 34% by 2029 — from 2.5 in 2024 to a central estimate of 1.7 (95% range 0.00–6.0). A 5-year backtest shows a typical error of ±68.1%, with 100% of held-out values landing inside the 95% band.

-34%Change by 2029TrendPercent 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 →
1.7Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–6.095% 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 →
±68.1%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, Ring-necked Pheasant in Wyoming is projected to fall about 34% by 2029 — from 2.5 in 2024 to a central estimate of 1.7 (95% range 0.00–6.0). A 5-year backtest shows a typical error of ±68.1%, with 100% of held-out values landing inside the 95% band.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 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 →
20251.90.006.2
20261.80.006.2
20271.80.006.1
20281.70.006.0
20291.70.006.0

Ring-necked Pheasant Survey Routes in Wyoming

Routes recording Ring-necked Pheasant 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 →
Sybille Cyn5019971997
Wyarno3420241974
Midvale3020241987
Worland2120241992
Gebo1920241980
Lovell1820241989
Ethete1720241991
Dayton1620241980
Yoder1420241968
Frannie920241991
Mayoworth920241982
Clark720241990
Soda Well620241979
Otto520241970
Crowheart520212002
Lingle520241980
Basin420241970
Arvada420221986
Clarkelen319741974
Tensleep320241996
Lysite320171989
Highlight319901989
Nowood220161990
Sussex220181991
Pine Bluff220081979

Ring-necked Pheasant Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsin

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