Species · Indiana · BBS 2025 Release · 1966–2024
Northern Rough-winged Swallow Population Trend in Indiana
Northern Rough-winged Swallow in Indiana has risen sharply: up 53% on the route-weighted index since 1968.
+53%Since 1968
64Routes In State
58Years
Notable Northern Rough-winged Swallow Trends in Indiana
long arc increasecomputed index
Northern Rough-winged Swallow has risen sharply in Indiana: up 53% on the route-weighted index since 1968.
Northern Rough-winged Swallow Population Forecast in Indiana
If the recent trend holds, Northern Rough-winged Swallow in Indiana is projected to rise about 34% by 2029 — from 1.5 in 2024 to a central estimate of 2.0 (95% range 0.90–3.1). A 5-year backtest shows a typical error of ±27%, with 100% of held-out values landing inside the 95% band.
+34%Change by 2029
2.0Projected 2029 index
0.90–3.195% range
±27%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.0 | 0.87 | 3.1 |
| 2026 | 2.0 | 0.88 | 3.1 |
| 2027 | 2.0 | 0.89 | 3.1 |
| 2028 | 2.0 | 0.90 | 3.1 |
| 2029 | 2.0 | 0.90 | 3.1 |
Northern Rough-winged Swallow Survey Routes in Indiana
| Indian Spgs | 14 | 2024 | 1984 |
| Witts Station | 9 | 2024 | 2000 |
| Gary | 8 | 1999 | 1981 |
| Swayzee | 8 | 2003 | 1986 |
| Galveston | 7 | 2022 | 1981 |
| Lagrange | 6 | 2024 | 1999 |
| Belmont | 5 | 2024 | 1981 |
| Packertown | 4 | 2004 | 1973 |
| Frankfort | 4 | 2021 | 2013 |
| Montpelier | 4 | 2024 | 2018 |
| Newberry | 4 | 2024 | 2000 |
| Fowler | 3 | 2022 | 1966 |
| Thorntown | 3 | 2024 | 1982 |
| Wabash | 3 | 2024 | 1984 |
| Pimento | 3 | 2022 | 1981 |
| Brazil | 3 | 2022 | 1966 |
| Spencer | 3 | 2024 | 1971 |
| Sexton | 3 | 2022 | 1982 |
| Milroy | 3 | 2018 | 1966 |
| Shelbyville | 3 | 2024 | 1985 |
| Washington | 3 | 2023 | 1987 |
| Vevay | 3 | 2023 | 1967 |
| Georgia | 3 | 2024 | 1999 |
| Cross Plains | 3 | 2009 | 2003 |
| Cyprss | 3 | 2023 | 1999 |
Northern Rough-winged Swallow Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.