BirdAnalyst
Species · BCR 16 · BBS 2026 Release · 1966–2025

Ring-necked Pheasant In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGame birds

Ring-necked Pheasant in Southern Rockies / Colorado Plateau has declined: down 48% on the route-weighted index since 1970.

-48%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 →
63Routes In RegionSurvey 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 SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Ring-necked Pheasant in Southern Rockies / Colorado Plateau. See the full index history below.

Ring-necked Pheasant In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, Ring-necked Pheasant in Southern Rockies / Colorado Plateau is projected to fall about 48% by 2030 — from 0.16 in 2025 to a central estimate of 0.09 (95% range 0.00–0.67). A 5-year backtest shows a typical error of ±76.3%, with 100% of held-out values landing inside the 95% band.

-48%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 →
0.09Projected 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 →
0.00–0.6795% 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 →
±76.3%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 Southern Rockies / Colorado Plateau is projected to fall about 48% by 2030 — from 0.16 in 2025 to a central estimate of 0.09 (95% range 0.00–0.67). A 5-year backtest shows a typical error of ±76.3%, 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 →
20260.150.000.74
20270.130.000.72
20280.120.000.70
20290.100.000.69
20300.090.000.67

Routes In Southern Rockies / Colorado Plateau

Routes recording Ring-necked Pheasant in Southern Rockies / Colorado Plateau.
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 CynWYOMING501997
FruitaCOLORADO132007
AztecNEW-MEXICO91989
JensenUTAH82025
DoloresCOLORADO51985
BlancaCOLORADO51986
AltonahUTAH42025
CastletonUTAH41985
HannaUTAH41997
AnethUTAH32007
Beck 2UTAH31995
Wellington 3UTAH32025
Douglas PassCOLORADO22000
ParlinCOLORADO22009
PaoniaCOLORADO22025
BasinCOLORADO22008
Rifle FallsCOLORADO22021
NuclaCOLORADO22010
FarmingtonNEW-MEXICO21987
GallinasNEW-MEXICO22011
DragertonUTAH22025
Castle DaleUTAH22025
VernalUTAH22017
WellingtonUTAH22002
YampaCOLORADO11970

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