Species · BCR 28 · BBS 2025 Release · 1966–2024
Field Sparrow In Appalachian Mountains
Field Sparrow in Appalachian Mountains has fallen sharply: down 67% on the route-weighted index since 1968.
-67%Since 1968
395Routes In Region
58Years
Notable Signals
long arc declinecomputed index
Field Sparrow has fallen sharply in Appalachian Mountains: down 67% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Field Sparrow in Appalachian Mountains is projected to fall about 55% by 2029 — from 5.3 in 2024 to a central estimate of 2.4 (95% range 0.00–5.1). A 5-year backtest shows a typical error of ±44.9%, with 60% of held-out values landing inside the 95% band.
-55%Change by 2029
2.4Projected 2029 index
0.00–5.195% range
±44.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.1 | 0.38 | 5.8 |
| 2026 | 2.9 | 0.20 | 5.7 |
| 2027 | 2.8 | 0.02 | 5.5 |
| 2028 | 2.6 | 0.00 | 5.3 |
| 2029 | 2.4 | 0.00 | 5.1 |
Routes In Appalachian Mountains
| Coal Run | OHIO | 44 | 1992 |
| Corryton Rd | TENNESSEE | 41 | 2019 |
| Needmore | PENNSYLVANIA | 26 | 1991 |
| Blacksburg | VIRGINIA | 26 | 2024 |
| Nat Tunnel | VIRGINIA | 24 | 2024 |
| Davis Crossroads | GEORGIA | 23 | 2021 |
| Bebee | WEST-VIRGINIA | 23 | 2024 |
| Stonecreek | OHIO | 22 | 2024 |
| Doubling Gap | PENNSYLVANIA | 22 | 1977 |
| Mt Storm | WEST-VIRGINIA | 21 | 1975 |
| Shanghai | WEST-VIRGINIA | 20 | 2022 |
| Duvall | PENNSYLVANIA | 19 | 2021 |
| Mt Olive | TENNESSEE | 19 | 2024 |
| Jones Gap | TENNESSEE | 19 | 2019 |
| Hix | WEST-VIRGINIA | 19 | 2024 |
| Mcdonald | WEST-VIRGINIA | 19 | 2023 |
| Stevenson | ALABAMA | 18 | 2024 |
| Paintsville | KENTUCKY | 18 | 1995 |
| Sturgills | NORTH-CAROLINA | 18 | 2024 |
| Martinsburg | WEST-VIRGINIA | 18 | 2024 |
| Gesling | KENTUCKY | 17 | 1973 |
| Kehoe | KENTUCKY | 17 | 1992 |
| Omega | OHIO | 17 | 2024 |
| Rector | PENNSYLVANIA | 17 | 1977 |
| Star Tannery | VIRGINIA | 17 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.