Species · BCR 10 · BBS 2025 Release · 1966–2024
Bushtit In Northern Rockies
Bushtit in Northern Rockies has fallen sharply: down 70% on the route-weighted index since 1978.
-70%Since 1978
14Routes In Region
24Years
Notable Signals
long arc declinecomputed index
Bushtit has fallen sharply in Northern Rockies: down 70% on the route-weighted index since 1978.
Forecast
If the recent trend holds, Bushtit in Northern Rockies is projected to fall about 53% by 2028 — from 0.06 in 2023 to a central estimate of 0.03 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±57.1%, with 100% of held-out values landing inside the 95% band.
-53%Change by 2028
0.03Projected 2028 index
0.00–0.2195% range
±57.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.04 | 0.00 | 0.22 |
| 2025 | 0.04 | 0.00 | 0.22 |
| 2026 | 0.03 | 0.00 | 0.21 |
| 2027 | 0.03 | 0.00 | 0.21 |
| 2028 | 0.03 | 0.00 | 0.21 |
Routes In Northern Rockies
| Ochoco | OREGON | 12 | 2014 |
| Eagle Rock | OREGON | 8 | 1977 |
| Lay | COLORADO | 7 | 2004 |
| Madras | OREGON | 5 | 2023 |
| Mtn View | WYOMING | 5 | 1980 |
| Summit Pr | OREGON | 3 | 1982 |
| Monument | OREGON | 3 | 2022 |
| Bridgeport | OREGON | 2 | 2011 |
| Twickenham | OREGON | 2 | 2023 |
| Maybell | COLORADO | 1 | 2004 |
| Browns Park | COLORADO | 1 | 2005 |
| Saleratus Cr | UTAH | 1 | 2004 |
| Diamondville | WYOMING | 1 | 1979 |
| Rock Springs | WYOMING | 1 | 2012 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.