Species · Montana · BBS 2025 Release · 1966–2024
Baird's Sparrow Population Trend in Montana
Baird's Sparrow in Montana has risen sharply: up 64% on the route-weighted index since 1971.
+64%Since 1971
54Routes In State
54Years
Notable Baird's Sparrow Trends in Montana
long arc increasecomputed index
Baird's Sparrow has risen sharply in Montana: up 64% on the route-weighted index since 1971.
Baird's Sparrow Population Forecast in Montana
If the recent trend holds, Baird's Sparrow in Montana is projected to stay roughly flat through 2029, near 1.0 (95% range 0.00–2.2). A 5-year backtest shows a typical error of ±29.4%, with 80% of held-out values landing inside the 95% band.
-7%Change by 2029
1.0Projected 2029 index
0.00–2.295% range
±29.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.97 | 0.00 | 2.2 |
| 2026 | 0.98 | 0.00 | 2.2 |
| 2027 | 0.98 | 0.00 | 2.2 |
| 2028 | 0.99 | 0.00 | 2.2 |
| 2029 | 1.0 | 0.00 | 2.2 |
Baird's Sparrow Survey Routes in Montana
| Glentana | 22 | 2024 | 2015 |
| Two Dot | 14 | 2024 | 1981 |
| Westby | 11 | 2024 | 2015 |
| Savage | 9 | 2015 | 1990 |
| Oswego | 7 | 2024 | 1978 |
| Redstone | 7 | 2024 | 1983 |
| Heart Butte | 7 | 2019 | 2015 |
| Circle | 5 | 2021 | 1972 |
| Albion | 5 | 2023 | 1982 |
| Ester Lake | 5 | 2024 | 2015 |
| Saco | 5 | 2024 | 2015 |
| Whitlash | 5 | 2024 | 2018 |
| Cleveland | 4 | 2024 | 1979 |
| Winnett | 4 | 2018 | 2018 |
| Hehn Draw | 4 | 2022 | 2022 |
| Harlem | 3 | 2018 | 1980 |
| Brusett | 3 | 2018 | 2018 |
| Brandenberg | 3 | 1991 | 1970 |
| Shelby | 3 | 2024 | 2015 |
| Lambert | 3 | 2022 | 2022 |
| Coleman Coulee | 3 | 2019 | 2017 |
| Virgelle | 2 | 2019 | 1980 |
| Augusta | 2 | 2015 | 1977 |
| Locate | 2 | 2022 | 1982 |
| Laurel | 2 | 1980 | 1980 |
Baird's Sparrow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.