Species · Ohio · BBS 2025 Release · 1966–2024
Cliff Swallow Population Trend in Ohio
Cliff Swallow in Ohio has surged: up 16× on the route-weighted index since 1971.
16×Since 1971
42Routes In State
47Years
Notable Cliff Swallow Trends in Ohio
long arc increasecomputed index
Cliff Swallow has surged in Ohio: up 16× on the route-weighted index since 1971.
Cliff Swallow Population Forecast in Ohio
If the recent trend holds, Cliff Swallow in Ohio is projected to fall about 12% by 2029 — from 4.3 in 2024 to a central estimate of 3.8 (95% range 2.3–5.2). A 5-year backtest shows a typical error of ±22.4%, with 100% of held-out values landing inside the 95% band.
-12%Change by 2029
3.8Projected 2029 index
2.3–5.295% range
±22.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.5 | 2.0 | 4.9 |
| 2026 | 3.5 | 2.1 | 5.0 |
| 2027 | 3.6 | 2.2 | 5.1 |
| 2028 | 3.7 | 2.2 | 5.1 |
| 2029 | 3.8 | 2.3 | 5.2 |
Cliff Swallow Survey Routes in Ohio
| Omega | 61 | 2024 | 1974 |
| Herner Crns | 51 | 2024 | 1984 |
| Shawnee S.F. 2 | 35 | 2013 | 2013 |
| Rome | 20 | 2024 | 2000 |
| Bismark | 14 | 1971 | 1971 |
| Lucerne | 11 | 2024 | 1999 |
| Stonecreek | 6 | 2024 | 2002 |
| Ash Ridge | 5 | 2012 | 2012 |
| Birmingham | 4 | 2024 | 1988 |
| South Olive | 4 | 2014 | 2013 |
| Darrtown | 4 | 1966 | 1966 |
| Keene | 4 | 2023 | 1995 |
| N Baltimore | 3 | 2018 | 2010 |
| Tar Hollow | 3 | 2017 | 2007 |
| Kalida | 3 | 2017 | 2017 |
| Marion | 3 | 2023 | 2018 |
| Meadowbrook | 3 | 2021 | 2014 |
| Maysville | 3 | 2010 | 1993 |
| Scioto Furn | 3 | 1997 | 1997 |
| Norwalk | 3 | 1999 | 1982 |
| Kunkle | 2 | 2008 | 2008 |
| Pittsfield | 2 | 2024 | 2009 |
| Ashley | 2 | 2007 | 1988 |
| Middlefield | 2 | 1991 | 1991 |
| Lenox | 2 | 1971 | 1967 |
Cliff Swallow Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.