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Species · Wyoming · BBS 2026 Release · 1966–2025

Ring-necked Pheasant Population Trend in Wyoming

All statesGame birds

Ring-necked Pheasant in Wyoming has fallen sharply: down 62% on the route-weighted index since 1970.

-62%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 →
57YearsYears 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 62% 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 25% by 2030 — from 2.1 in 2025 to a central estimate of 1.6 (95% range 0.00–5.9). A 5-year backtest shows a typical error of ±37.8%, with 100% of held-out values landing inside the 95% band.

-25%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 →
1.6Projected 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 →
0.00–5.995% 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 →
±37.8%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, Ring-necked Pheasant in Wyoming is projected to fall about 25% by 2030 — from 2.1 in 2025 to a central estimate of 1.6 (95% range 0.00–5.9). A 5-year backtest shows a typical error of ±37.8%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20261.90.006.1
20271.80.006.1
20281.70.006.0
20291.70.005.9
20301.60.005.9

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
Ethete3220251991
Wyarno3120251974
Lovell2620251989
Gebo1620251980
Otto1520251970
Yoder1420251968
Worland1420251992
Dayton1220251980
Clark1120251990
Midvale920251987
Mayoworth920241982
Tensleep620251996
Soda Well620241979
Basin520251970
Crowheart520212002
Lingle520241980
Frannie420251991
Arvada420251986
Clarkelen319741974
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 2026-08-14.