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

Gunnison Sage-Grouse In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Gunnison Sage-Grouse in Southern Rockies / Colorado Plateau has collapsed: down 76% on the route-weighted index since 1995.

-76%Since 1995
7Routes In Region
24Years

Notable Signals

long arc declinecomputed index

Gunnison Sage-Grouse has collapsed in Southern Rockies / Colorado Plateau: down 75% on the route-weighted index since 1995.

Forecast

If the recent trend holds, Gunnison Sage-Grouse in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±84.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2028
0.02Projected 2028 index
0.00–0.1195% range
±84.1%Backtest error
19792028
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
20240.030.000.11
20250.030.000.11
20260.030.000.11
20270.020.000.11
20280.020.000.11

Routes In Southern Rockies / Colorado Plateau

Routes recording Gunnison Sage-Grouse in Southern Rockies / Colorado Plateau.
BasinCOLORADO72000
ColonaCOLORADO51979
PowderhornCOLORADO32023
ParlinCOLORADO12015
DoylevilleCOLORADO12021
PaoniaCOLORADO11998
MonticelloUTAH12019

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