Species · BCR 10 · BBS 2025 Release · 1966–2024
Short-eared Owl In Northern Rockies
Short-eared Owl in Northern Rockies has declined: down 43% on the route-weighted index since 1972.
-43%Since 1972
47Routes In Region
47Years
Notable Signals
No notable trend signals for Short-eared Owl in Northern Rockies. See the full index history below.
Forecast
If the recent trend holds, Short-eared Owl in Northern Rockies is projected to fall about 75% by 2029 — from 0.17 in 2024 to a central estimate of 0.04 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±108.1%, with 80% of held-out values landing inside the 95% band.
-75%Change by 2029
0.04Projected 2029 index
0.00–0.1595% range
±108.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.05 | 0.00 | 0.15 |
| 2026 | 0.05 | 0.00 | 0.15 |
| 2027 | 0.04 | 0.00 | 0.15 |
| 2028 | 0.04 | 0.00 | 0.15 |
| 2029 | 0.04 | 0.00 | 0.15 |
Routes In Northern Rockies
| Great Divide | COLORADO | 3 | 2024 |
| Brunzell Slough | MONTANA | 3 | 2024 |
| Church Hill | MONTANA | 3 | 2024 |
| Clyde Park | MONTANA | 3 | 2024 |
| Patrick Draw | WYOMING | 3 | 1974 |
| Arminto | WYOMING | 3 | 2024 |
| Crane Creek | IDAHO | 2 | 2016 |
| Augusta | MONTANA | 2 | 2015 |
| Willow Creek | MONTANA | 2 | 1981 |
| Wolf Creek | MONTANA | 2 | 2017 |
| Raynesford | MONTANA | 2 | 2024 |
| Threemile Wa | MONTANA | 2 | 2009 |
| Saleratus Cr | UTAH | 2 | 1999 |
| Frannie | WYOMING | 2 | 2018 |
| Moose | WYOMING | 2 | 1992 |
| Pathfinder | WYOMING | 2 | 1983 |
| Gas Hills 2 | WYOMING | 2 | 2024 |
| Yellowstone | WYOMING | 2 | 1988 |
| Maybell | COLORADO | 1 | 2017 |
| Grangeville | IDAHO | 1 | 1986 |
| Cape Horn | IDAHO | 1 | 1998 |
| Sawtooth Cty | IDAHO | 1 | 2012 |
| Sawtooth City 2 | IDAHO | 1 | 2024 |
| Kalispell | MONTANA | 1 | 1994 |
| St Mary | MONTANA | 1 | 1991 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.