Species · Montana · BBS 2025 Release · 1966–2024
Red-naped Sapsucker Population Trend in Montana
Red-naped Sapsucker in Montana has surged: up 587% on the route-weighted index since 1970.
+587%Since 1970
53Routes In State
56Years
Notable Red-naped Sapsucker Trends in Montana
long arc increasecomputed index
Red-naped Sapsucker has surged in Montana: up 587% on the route-weighted index since 1970.
Red-naped Sapsucker Population Forecast in Montana
If the recent trend holds, Red-naped Sapsucker in Montana is projected to rise about 40% by 2029 — from 0.61 in 2024 to a central estimate of 0.86 (95% range 0.49–1.2). A 5-year backtest shows a typical error of ±101%, with 0% of held-out values landing inside the 95% band.
+40%Change by 2029
0.86Projected 2029 index
0.49–1.295% range
±101%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.81 | 0.45 | 1.2 |
| 2026 | 0.82 | 0.46 | 1.2 |
| 2027 | 0.84 | 0.47 | 1.2 |
| 2028 | 0.85 | 0.48 | 1.2 |
| 2029 | 0.86 | 0.49 | 1.2 |
Red-naped Sapsucker Survey Routes in Montana
| Swan Lake | 5 | 2024 | 2015 |
| Chestnut | 4 | 2024 | 1969 |
| Red Rock | 4 | 2024 | 1980 |
| East Glacier Park | 4 | 2024 | 2015 |
| Maynard Coulee | 4 | 2024 | 2017 |
| Inside Road | 3 | 2024 | 1990 |
| Sula | 3 | 2024 | 1977 |
| Heart Butte | 3 | 2024 | 2015 |
| Libby Dam | 2 | 2024 | 1979 |
| St Mary | 2 | 2008 | 1971 |
| Victor | 2 | 2023 | 1994 |
| Greenough | 2 | 2003 | 1995 |
| Elevation Mt | 2 | 2022 | 1996 |
| Elliston | 2 | 2024 | 1979 |
| Two Dot | 2 | 2016 | 1981 |
| Fort Logan | 2 | 2024 | 2018 |
| Whitefish Lake | 2 | 2024 | 2016 |
| Greenoagh 2 | 2 | 2011 | 2005 |
| Greenoagh 3 | 2 | 2024 | 2014 |
| Thompson Riv | 2 | 2023 | 1993 |
| Painted Rock | 2 | 2022 | 1992 |
| Kalispell | 1 | 2024 | 1977 |
| Logan Pass | 1 | 2024 | 1980 |
| Threemile Wa | 1 | 2023 | 1993 |
| Cramer Creek | 1 | 2018 | 2003 |
Red-naped Sapsucker Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.