Species · Ohio · BBS 2025 Release · 1966–2024
Blue-gray Gnatcatcher Population Trend in Ohio
Blue-gray Gnatcatcher in Ohio has surged: up 101% on the route-weighted index since 1968.
+101%Since 1968
83Routes In State
58Years
Notable Blue-gray Gnatcatcher Trends in Ohio
long arc increasecomputed index
Blue-gray Gnatcatcher has surged in Ohio: up 101% on the route-weighted index since 1968.
Blue-gray Gnatcatcher Population Forecast in Ohio
If the recent trend holds, Blue-gray Gnatcatcher in Ohio is projected to rise about 13% by 2029 — from 3.3 in 2024 to a central estimate of 3.7 (95% range 2.3–5.0). A 5-year backtest shows a typical error of ±16.1%, with 100% of held-out values landing inside the 95% band.
+13%Change by 2029
3.7Projected 2029 index
2.3–5.095% range
±16.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.5 | 2.2 | 4.9 |
| 2026 | 3.6 | 2.2 | 4.9 |
| 2027 | 3.6 | 2.3 | 4.9 |
| 2028 | 3.6 | 2.3 | 5.0 |
| 2029 | 3.7 | 2.3 | 5.0 |
Blue-gray Gnatcatcher Survey Routes in Ohio
| Rome | 34 | 2024 | 1966 |
| Dell | 25 | 2019 | 1993 |
| Zaleski S.F. | 20 | 2024 | 1992 |
| Tick Ridge | 14 | 2019 | 1993 |
| Shawnee S.F. 2 | 13 | 2019 | 2001 |
| Greasy Ridge | 12 | 1991 | 1966 |
| Coal Run | 11 | 1992 | 1966 |
| Wilgus | 11 | 2009 | 1992 |
| Shawnee S.F. | 10 | 2000 | 1992 |
| Tar Hollow | 10 | 2024 | 1992 |
| Stonecreek | 9 | 2024 | 1996 |
| Harveysburg | 7 | 1996 | 1966 |
| W Carrollton | 7 | 2015 | 1989 |
| Wayne N.F. | 7 | 2024 | 1992 |
| Dresden | 6 | 2024 | 1966 |
| Mohican S.F. | 6 | 2024 | 1992 |
| Smithfield | 5 | 2024 | 1967 |
| Ray | 5 | 2024 | 1992 |
| New Marshfld | 5 | 2024 | 1966 |
| Cuba | 4 | 2004 | 1995 |
| Wilmington | 4 | 1996 | 1979 |
| Birmingham | 4 | 2024 | 1988 |
| South Olive | 4 | 2017 | 1993 |
| Kalida | 3 | 2019 | 2010 |
| Cumberland | 3 | 2007 | 1966 |
Blue-gray Gnatcatcher Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaoklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.