Species · Montana · BBS 2025 Release · 1966–2024
Upland Sandpiper Population Trend in Montana
Upland Sandpiper in Montana has surged: up 937% on the route-weighted index since 1970.
+937%Since 1970
63Routes In State
55Years
Notable Upland Sandpiper Trends in Montana
long arc increasecomputed index
Upland Sandpiper has surged in Montana: up 937% on the route-weighted index since 1970.
Upland Sandpiper Population Forecast in Montana
If the recent trend holds, Upland Sandpiper in Montana is projected to fall about 17% by 2029 — from 2.7 in 2024 to a central estimate of 2.2 (95% range 1.1–3.4). A 5-year backtest shows a typical error of ±20.1%, with 100% of held-out values landing inside the 95% band.
-17%Change by 2029
2.2Projected 2029 index
1.1–3.495% range
±20.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.1 | 1.00 | 3.3 |
| 2026 | 2.2 | 1.0 | 3.3 |
| 2027 | 2.2 | 1.0 | 3.3 |
| 2028 | 2.2 | 1.1 | 3.3 |
| 2029 | 2.2 | 1.1 | 3.4 |
Upland Sandpiper Survey Routes in Montana
| Locate | 42 | 2024 | 1981 |
| Savage | 35 | 2021 | 1970 |
| Albion | 21 | 2024 | 1982 |
| Hehn Draw | 20 | 2024 | 2016 |
| Cabin Creek | 19 | 2024 | 2018 |
| Redstone | 16 | 2024 | 1971 |
| Two Dot | 12 | 2024 | 1976 |
| Harlem | 10 | 2021 | 1972 |
| Westby | 10 | 2024 | 2015 |
| Lambert | 10 | 2024 | 2021 |
| Chuffey Spring | 10 | 2023 | 2016 |
| Shawmut | 7 | 2024 | 1982 |
| Flatwillow 2 | 6 | 2023 | 2010 |
| Roy | 6 | 2024 | 1988 |
| Forsyth | 6 | 2023 | 1988 |
| Webster | 6 | 2024 | 1986 |
| Custer 2 | 6 | 2024 | 2024 |
| Muddy Creek | 6 | 2015 | 2015 |
| Ingomar | 5 | 2023 | 1981 |
| Reed Point | 5 | 2024 | 1977 |
| Wolf Point | 5 | 2024 | 2015 |
| Winnett | 5 | 2023 | 2017 |
| Cleveland | 4 | 2024 | 1981 |
| Great Falls | 4 | 2024 | 1972 |
| Saco | 4 | 2024 | 2015 |
Upland Sandpiper Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.