Species · BCR 28 · BBS 2025 Release · 1966–2024
Brown Creeper In Appalachian Mountains
Brown Creeper in Appalachian Mountains has surged: up 15× on the route-weighted index since 1968.
15×Since 1968
138Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Brown Creeper has surged in Appalachian Mountains: up 15× on the route-weighted index since 1968.
Forecast
If the recent trend holds, Brown Creeper in Appalachian Mountains is projected to fall about 20% by 2029 — from 0.29 in 2024 to a central estimate of 0.23 (95% range 0.16–0.31). A 5-year backtest shows a typical error of ±23.6%, with 100% of held-out values landing inside the 95% band.
-20%Change by 2029
0.23Projected 2029 index
0.16–0.3195% range
±23.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.22 | 0.15 | 0.30 |
| 2026 | 0.23 | 0.15 | 0.30 |
| 2027 | 0.23 | 0.15 | 0.30 |
| 2028 | 0.23 | 0.16 | 0.30 |
| 2029 | 0.23 | 0.16 | 0.31 |
Routes In Appalachian Mountains
| Mcdonough | NEW-YORK | 6 | 2017 |
| Glade Run 2 | WEST-VIRGINIA | 5 | 2024 |
| Cherokee | NORTH-CAROLINA | 4 | 2024 |
| Roulette | PENNSYLVANIA | 4 | 2021 |
| Ansonia | PENNSYLVANIA | 4 | 2024 |
| Susquehanna | PENNSYLVANIA | 3 | 2024 |
| Newfound Gap | TENNESSEE | 3 | 2024 |
| Cades Cove | TENNESSEE | 3 | 2023 |
| Denmar | WEST-VIRGINIA | 3 | 2024 |
| Green Bank | WEST-VIRGINIA | 3 | 2024 |
| Bemis | WEST-VIRGINIA | 3 | 2024 |
| Jennings | MARYLAND | 2 | 2024 |
| Durham | NEW-YORK | 2 | 1970 |
| Platte Cove | NEW-YORK | 2 | 2018 |
| Corbettsvile | NEW-YORK | 2 | 2024 |
| Cattaraugus | NEW-YORK | 2 | 2019 |
| Oxford 2 | NEW-YORK | 2 | 2024 |
| French Broad River | NORTH-CAROLINA | 2 | 2024 |
| Kyle | NORTH-CAROLINA | 2 | 2024 |
| Lynch | PENNSYLVANIA | 2 | 2024 |
| Odin | PENNSYLVANIA | 2 | 2024 |
| Eldred | PENNSYLVANIA | 2 | 2022 |
| Logue | PENNSYLVANIA | 2 | 2008 |
| Rosecrans | PENNSYLVANIA | 2 | 1980 |
| Cherry Sprs | PENNSYLVANIA | 2 | 2010 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.