Species · BCR 16 · BBS 2025 Release · 1966–2024
Mountain Chickadee In Southern Rockies / Colorado Plateau
Mountain Chickadee in Southern Rockies / Colorado Plateau has surged: up 96% on the route-weighted index since 1970.
+96%Since 1970
173Routes In Region
56Years
Notable Signals
long arc increasecomputed index
Mountain Chickadee has surged in Southern Rockies / Colorado Plateau: up 96% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Mountain Chickadee in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 4.5 (95% range 2.8–6.2). A 5-year backtest shows a typical error of ±37.4%, with 80% of held-out values landing inside the 95% band.
+9%Change by 2029
4.5Projected 2029 index
2.8–6.295% range
±37.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.4 | 2.7 | 6.0 |
| 2026 | 4.4 | 2.7 | 6.1 |
| 2027 | 4.4 | 2.8 | 6.1 |
| 2028 | 4.5 | 2.8 | 6.2 |
| 2029 | 4.5 | 2.8 | 6.2 |
Routes In Southern Rockies / Colorado Plateau
| Grizzly Rdge | UTAH | 58 | 2024 |
| Navajo Lake | UTAH | 48 | 2024 |
| Pinos Creek | COLORADO | 43 | 1990 |
| Buffalo Park | COLORADO | 42 | 2023 |
| Sawmill | ARIZONA | 36 | 2014 |
| Deadman Rd. | COLORADO | 34 | 2024 |
| Dixie Nf | UTAH | 27 | 2024 |
| Gold Hill | COLORADO | 22 | 2012 |
| La Sal | UTAH | 20 | 2000 |
| Bryce Canyon | UTAH | 19 | 2024 |
| Mount Evans | COLORADO | 17 | 2024 |
| Tsaile | ARIZONA | 16 | 2023 |
| Mt. Taylor 2 | NEW-MEXICO | 16 | 2024 |
| Hite | UTAH | 16 | 1992 |
| Lost Cr. Res | UTAH | 16 | 2018 |
| Bluewater Lake | NEW-MEXICO | 15 | 2021 |
| Wasatch Nf | UTAH | 15 | 2024 |
| Ryan Park | WYOMING | 14 | 2023 |
| Cochetopa Pass | COLORADO | 13 | 2024 |
| Trail Ridge Road | COLORADO | 13 | 2014 |
| Lost Lake | COLORADO | 12 | 2024 |
| Red Cliff | COLORADO | 12 | 2024 |
| Angel Fire | NEW-MEXICO | 12 | 2002 |
| Dunckley Pas | COLORADO | 11 | 2024 |
| Mt. Taylor | NEW-MEXICO | 11 | 2012 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.