Species · BCR 10 · BBS 2025 Release · 1966–2024
Tennessee Warbler In Northern Rockies
Tennessee Warbler in Northern Rockies has edged up: up 20% on the route-weighted index since 1988.
+20%Since 1988
6Routes In Region
13Years
Notable Signals
No notable trend signals for Tennessee Warbler in Northern Rockies. See the full index history below.
Routes In Northern Rockies
| Whitefish Lake | MONTANA | 3 | 2016 |
| Logan Pass | MONTANA | 3 | 2016 |
| Libby Dam | MONTANA | 2 | 1991 |
| St. Mary 2 | MONTANA | 1 | 2016 |
| Swan Lake | MONTANA | 1 | 2017 |
| Inside Road | MONTANA | 1 | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.