Species · BCR 10 · BBS 2025 Release · 1966–2024
American Crow In Northern Rockies
American Crow in Northern Rockies has declined: down 42% on the route-weighted index since 1970.
-42%Since 1970
182Routes In Region
56Years
Notable Signals
No notable trend signals for American Crow in Northern Rockies. See the full index history below.
Forecast
If the recent trend holds, American Crow in Northern Rockies is projected to fall about 26% by 2029 — from 3.0 in 2024 to a central estimate of 2.2 (95% range 0.16–4.3). A 5-year backtest shows a typical error of ±15%, with 100% of held-out values landing inside the 95% band.
-26%Change by 2029
2.2Projected 2029 index
0.16–4.395% range
±15%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.5 | 0.38 | 4.5 |
| 2026 | 2.4 | 0.32 | 4.5 |
| 2027 | 2.3 | 0.27 | 4.4 |
| 2028 | 2.3 | 0.22 | 4.4 |
| 2029 | 2.2 | 0.16 | 4.3 |
Routes In Northern Rockies
| Church Hill | MONTANA | 53 | 2024 |
| Madras | OREGON | 30 | 2023 |
| Red Rock | MONTANA | 26 | 2024 |
| Cape Horn | IDAHO | 24 | 2021 |
| Hebgen Lake | MONTANA | 22 | 2024 |
| St Mary | MONTANA | 20 | 2008 |
| Buckskin Mtn | WYOMING | 20 | 1992 |
| Riverside | WYOMING | 19 | 2024 |
| Savery | WYOMING | 17 | 1995 |
| Naples | IDAHO | 16 | 2024 |
| Clinton | MONTANA | 15 | 2024 |
| Cascade | IDAHO | 14 | 1984 |
| St. Mary 2 | MONTANA | 14 | 2024 |
| Woodruff | UTAH | 14 | 2024 |
| Twin Bridges | MONTANA | 13 | 1976 |
| Lysite | WYOMING | 13 | 2024 |
| Greenoagh 3 | MONTANA | 12 | 2018 |
| Alpine | WYOMING | 12 | 2024 |
| Boulder | WYOMING | 12 | 2024 |
| Salmon River | IDAHO | 11 | 2021 |
| East Glacier Park | MONTANA | 10 | 2024 |
| Basin | WYOMING | 10 | 2009 |
| Coolin | IDAHO | 9 | 2024 |
| Greenough | MONTANA | 9 | 2003 |
| Kalispell | MONTANA | 8 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.