Species · Montana · BBS 2025 Release · 1966–2024
Redhead Population Trend in Montana
Redhead in Montana has surged: up 120% on the route-weighted index since 1972.
+120%Since 1972
30Routes In State
52Years
Notable Redhead Trends in Montana
long arc increasecomputed index
Redhead has surged in Montana: up 120% on the route-weighted index since 1972.
Redhead Population Forecast in Montana
If the recent trend holds, Redhead in Montana is projected to stay roughly flat through 2029, near 0.34 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±61%, with 80% of held-out values landing inside the 95% band.
-7%Change by 2029
0.34Projected 2029 index
0.00–1.495% range
±61%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.34 | 0.00 | 1.4 |
| 2026 | 0.34 | 0.00 | 1.4 |
| 2027 | 0.34 | 0.00 | 1.4 |
| 2028 | 0.34 | 0.00 | 1.4 |
| 2029 | 0.34 | 0.00 | 1.4 |
Redhead Survey Routes in Montana
| Two Dot | 18 | 2024 | 1988 |
| Ingomar | 8 | 2024 | 1977 |
| Red Rock | 7 | 1995 | 1993 |
| Malta | 6 | 2023 | 1976 |
| Polson | 5 | 1996 | 1990 |
| Harlem | 4 | 1993 | 1993 |
| Westby | 4 | 2021 | 2015 |
| Pablo Res. | 4 | 2024 | 1997 |
| Whitlash | 4 | 2014 | 2012 |
| Hay Lake | 3 | 2003 | 1994 |
| Sunburst | 3 | 2003 | 1975 |
| Oswego | 3 | 1978 | 1978 |
| Augusta | 3 | 2022 | 1979 |
| Great Falls | 3 | 1989 | 1979 |
| Kalispell | 2 | 2016 | 1969 |
| Cleveland | 2 | 1990 | 1985 |
| Willow Creek 2 | 2 | 2023 | 2021 |
| Arlee | 2 | 2011 | 2011 |
| Leroy | 2 | 2017 | 1996 |
| Shelby | 2 | 2018 | 2018 |
| Ester Lake | 2 | 2023 | 2016 |
| Wolf Point | 2 | 2023 | 2023 |
| Dinosaurs H.M. | 2 | 2021 | 2021 |
| Highwood | 1 | 2024 | 1973 |
| Savage | 1 | 1980 | 1980 |
Redhead Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.