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Species · Oregon · BBS 2025 Release · 1966–2024

Ring-necked Pheasant Population Trend in Oregon

All statesGrassland birds

Ring-necked Pheasant in Oregon has fallen sharply: down 59% on the route-weighted index since 1970.

-59%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 →
67Routes 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 OregonNotable 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 Oregon: down 59% on the route-weighted index since 1970.

Ring-necked Pheasant Population Forecast in Oregon

If the recent trend holds, Ring-necked Pheasant in Oregon is projected to fall about 85% by 2029 — from 1.8 in 2024 to a central estimate of 0.27 (95% range 0.00–2.6). A 5-year backtest shows a typical error of ±72.6%, with 100% of held-out values landing inside the 95% band.

-85%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 →
0.27Projected 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 →
0.00–2.695% 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 →
±72.6%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 Oregon is projected to fall about 85% by 2029 — from 1.8 in 2024 to a central estimate of 0.27 (95% range 0.00–2.6). A 5-year backtest shows a typical error of ±72.6%, 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 →
20250.720.003.1
20260.610.003.0
20270.490.002.9
20280.380.002.8
20290.270.002.6

Ring-necked Pheasant Survey Routes in Oregon

Routes recording Ring-necked Pheasant in Oregon.
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 →
Fish Lake6220241972
Ordnance4419791971
Pendleton3220241972
Fandango Can2319981984
Montague2220241974
Adrian1920211984
Lone Rock1620241968
Sheaville1320242012
Crane1220051993
Umatilla1120231988
Bridgeport820221986
Malheur Nwr720221986
Cecil720241998
Princeton619851972
Mikkalo520231996
Sams Valley520241993
Twickenham420242010
Sparta320011971
Donnybrook319971997
Tualatin220011968
Trout Creek220211998
Umpqua220241968
Alvord Lake220241968
Garfield220131973
Mount Vernon220001986

Ring-necked Pheasant Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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