Species · BCR 3 · BBS 2025 Release · 1966–2024
Savannah Sparrow In BCR 3
Savannah Sparrow in BCR 3 has surged: up 194% on the route-weighted index since 1995.
+194%Since 1995
5Routes In Region
31Years
Notable Signals
long arc increasecomputed index
Savannah Sparrow has surged in BCR 3: up 194% on the route-weighted index since 1995.
Forecast
If the recent trend holds, Savannah Sparrow in BCR 3 is projected to stay roughly flat through 2029, near 66 (95% range 32–101). A 5-year backtest shows a typical error of ±12.5%, with 100% of held-out values landing inside the 95% band.
-3%Change by 2029
66Projected 2029 index
32–10195% range
±12.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 65 | 31 | 100 |
| 2026 | 66 | 32 | 100 |
| 2027 | 66 | 32 | 100 |
| 2028 | 66 | 32 | 100 |
| 2029 | 66 | 32 | 101 |
Routes In BCR 3
| Happy Valley | ALASKA | 97 | 2024 |
| Galbraith L. | ALASKA | 93 | 2024 |
| Red Dog | ALASKA | 81 | 2024 |
| Dietrich Cmp | ALASKA | 4 | 2024 |
| Utqiagvik | ALASKA | 2 | 2023 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.