Species · BCR 24 · BBS 2025 Release · 1966–2024
Northern Rough-winged Swallow In Central Hardwoods
Northern Rough-winged Swallow in Central Hardwoods has risen sharply: up 63% on the route-weighted index since 1968.
+63%Since 1968
155Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Northern Rough-winged Swallow has risen sharply in Central Hardwoods: up 63% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Northern Rough-winged Swallow in Central Hardwoods is projected to rise about 80% by 2029 — from 1.5 in 2024 to a central estimate of 2.7 (95% range 1.3–4.0). A 5-year backtest shows a typical error of ±65.9%, with 40% of held-out values landing inside the 95% band.
+80%Change by 2029
2.7Projected 2029 index
1.3–4.095% range
±65.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.6 | 1.3 | 3.9 |
| 2026 | 2.6 | 1.3 | 3.9 |
| 2027 | 2.6 | 1.3 | 3.9 |
| 2028 | 2.6 | 1.3 | 4.0 |
| 2029 | 2.7 | 1.3 | 4.0 |
Routes In Central Hardwoods
| Campbellsville | TENNESSEE | 82 | 2019 |
| Tullahoma | TENNESSEE | 22 | 2015 |
| Farwell | ARKANSAS | 20 | 2018 |
| Valhermoso Spg 2 | ALABAMA | 17 | 2014 |
| Drakesboro | KENTUCKY | 17 | 1993 |
| Hayden | MISSOURI | 16 | 2021 |
| White House | TENNESSEE | 15 | 2019 |
| Indian Spgs | INDIANA | 14 | 2024 |
| Pond Creek | TENNESSEE | 14 | 2024 |
| Pineville | MISSOURI | 13 | 2016 |
| Sandusky | ILLINOIS | 11 | 2023 |
| Lincoln | MISSOURI | 11 | 2024 |
| Palace | MISSOURI | 11 | 2024 |
| Triana | ALABAMA | 10 | 2012 |
| Levee | KENTUCKY | 10 | 1982 |
| Keysburg | KENTUCKY | 9 | 2022 |
| Russell | ARKANSAS | 8 | 2021 |
| Glen | TENNESSEE | 8 | 2024 |
| Brownsville | KENTUCKY | 7 | 2024 |
| Syracuse | MISSOURI | 7 | 2024 |
| Whitewater | MISSOURI | 7 | 2023 |
| Peytonsville | TENNESSEE | 7 | 2024 |
| Levee 2 | KENTUCKY | 6 | 2019 |
| Clementine | MISSOURI | 6 | 2002 |
| Barks | MISSOURI | 6 | 2023 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.