BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Chukar In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Chukar in Southern Rockies / Colorado Plateau has collapsed: down 79% on the route-weighted index since 1975.

-79%Since 1975
26Routes In Region
42Years

Notable Signals

long arc declinecomputed index

Chukar has collapsed in Southern Rockies / Colorado Plateau: down 79% on the route-weighted index since 1975.

Forecast

If the recent trend holds, Chukar in Southern Rockies / Colorado Plateau is projected to fall about 93% by 2029 — from 0.29 in 2024 to a central estimate of 0.02 (95% range 0.00–0.37). A 5-year backtest shows a typical error of ±107.9%, with 100% of held-out values landing inside the 95% band.

-93%Change by 2029
0.02Projected 2029 index
0.00–0.3795% range
±107.9%Backtest error
19692029
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
20250.040.000.38
20260.030.000.38
20270.030.000.38
20280.020.000.37
20290.020.000.37

Routes In Southern Rockies / Colorado Plateau

Routes recording Chukar in Southern Rockies / Colorado Plateau.
ShivwitzUTAH162024
Book RidgeUTAH92024
Baxter PassCOLORADO72024
BonanzaUTAH72006
CastletonUTAH41976
Douglas PassCOLORADO32024
Glen CanyonUTAH32016
Mesaverde NpCOLORADO22006
FayetteUTAH22019
WestwaterUTAH22024
ToroweapARIZONA12015
DeltaCOLORADO12001
Wray GulchCOLORADO11988
BasinCOLORADO12009
Desert ViewUTAH12017
HiteUTAH12007
ClevelandUTAH12024
NotomUTAH12022
Main CanyonUTAH11988
Cane Spr DesUTAH12000
Castle DaleUTAH12019
MoabUTAH11998
BicknellUTAH12007
Green RiverUTAH12021
Bullfrog BayUTAH12005

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