Species · West Virginia · BBS 2025 Release · 1966–2024
Barn Swallow Population Trend in West Virginia
Barn Swallow in West Virginia has declined: down 35% on the route-weighted index since 1968.
-35%Since 1968
63Routes In State
58Years
Notable Barn Swallow Trends in West Virginia
No notable trend signals for Barn Swallow in West Virginia. See the full index history below.
Barn Swallow Population Forecast in West Virginia
If the recent trend holds, Barn Swallow in West Virginia is projected to rise about 17% by 2029 — from 10 in 2024 to a central estimate of 12 (95% range 7.0–17). A 5-year backtest shows a typical error of ±12.2%, with 100% of held-out values landing inside the 95% band.
+17%Change by 2029
12Projected 2029 index
7.0–1795% range
±12.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 12 | 7.3 | 17 |
| 2026 | 12 | 7.2 | 17 |
| 2027 | 12 | 7.2 | 17 |
| 2028 | 12 | 7.1 | 17 |
| 2029 | 12 | 7.0 | 17 |
Barn Swallow Survey Routes in West Virginia
| Arlee | 66 | 1979 | 1966 |
| Clendenin | 42 | 2024 | 1979 |
| Welch | 40 | 2023 | 1980 |
| Hix | 38 | 2024 | 1970 |
| Spencer | 36 | 2023 | 1986 |
| Mcdonald | 33 | 2023 | 1987 |
| Bebee | 31 | 2024 | 1972 |
| Ruthbelle | 26 | 2024 | 1975 |
| Josephs Mill | 24 | 2024 | 1993 |
| Hanover | 22 | 2024 | 1980 |
| Yellow Spg | 21 | 2023 | 1972 |
| Slate | 20 | 2024 | 1980 |
| Washburn | 20 | 2022 | 1974 |
| Moundsville | 19 | 2024 | 1972 |
| Smithfield | 19 | 2024 | 1993 |
| Mt Storm | 17 | 1975 | 1966 |
| Green Bank | 16 | 2024 | 1977 |
| Rio | 16 | 1995 | 1974 |
| Cedarville | 15 | 2023 | 1982 |
| Meadland | 12 | 2024 | 1997 |
| Lost River | 12 | 2023 | 1996 |
| Pedro | 11 | 2024 | 1979 |
| Ghent | 11 | 2024 | 1978 |
| Pt Pleasant | 11 | 2023 | 1973 |
| Berryburg | 11 | 1996 | 1975 |
Barn Swallow Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.