BirdAnalyst
Species · California · BBS 2025 Release · 1966–2024

Ring-necked Pheasant Population Trend in California

All statesGrassland birds

Ring-necked Pheasant in California has collapsed: down 91% on the route-weighted index since 1970.

-91%Since 1970
95Routes In State
56Years

Notable Ring-necked Pheasant Trends in California

long arc declinecomputed index

Ring-necked Pheasant has collapsed in California: down 91% on the route-weighted index since 1970.

Ring-necked Pheasant Population Forecast in California

If the recent trend holds, Ring-necked Pheasant in California is projected to fall about 100% by 2029 — from 0.24 in 2024 to a central estimate of 0.00 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±125.1%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.895% range
±125.1%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
20250.170.001.9
20260.090.001.8
20270.010.001.8
20280.000.001.8
20290.000.001.8

Ring-necked Pheasant Survey Routes in California

Routes recording Ring-necked Pheasant in California.
Dorris4220191972
Athlone2319891972
Atwater2220121971
Tranquillity1320041972
Auburn1219801969
Ora Loma920241972
Yreka920191973
Caruthers819871972
Niland820231985
Staten Is.820241994
Glenn620231971
Lake Success519961972
Orland520191972
Livermore519851973
Oilfields419811968
Cordova419811971
Honey Lake420241972
Bartlett Sps420061975
Collegeville320041968
Gravesboro319951968
Moreno319861969
Shafter319891971
Brawley320121976
Collegeville 2320092007
Hughson220111968

Ring-necked Pheasant Population Trend in Other States

alaskaarizonacoloradoconnecticutdelawareidahoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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