Species · Georgia · BBS 2025 Release · 1966–2024
Grasshopper Sparrow Population Trend in Georgia
Grasshopper Sparrow in Georgia has collapsed: down 95% on the route-weighted index since 1968.
-95%Since 1968
43Routes In State
57Years
Notable Grasshopper Sparrow Trends in Georgia
long arc declinecomputed index
Grasshopper Sparrow has collapsed in Georgia: down 95% on the route-weighted index since 1968.
Grasshopper Sparrow Population Forecast in Georgia
If the recent trend holds, Grasshopper Sparrow in Georgia is projected to fall about 100% by 2029 — from 0.23 in 2024 to a central estimate of 0.00 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±147.4%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–1.395% range
±147.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 1.3 |
| 2026 | 0.00 | 0.00 | 1.3 |
| 2027 | 0.00 | 0.00 | 1.3 |
| 2028 | 0.00 | 0.00 | 1.3 |
| 2029 | 0.00 | 0.00 | 1.3 |
Grasshopper Sparrow Survey Routes in Georgia
| Wadley | 6 | 1979 | 1979 |
| Lincolnton | 5 | 1995 | 1967 |
| Rutledge | 5 | 2024 | 1978 |
| Stoney Point 2 | 5 | 2019 | 2015 |
| Lacross | 4 | 1992 | 1974 |
| Metasville | 4 | 2000 | 1997 |
| Linwood | 3 | 2018 | 1970 |
| Holly Sprs | 3 | 1983 | 1978 |
| Hiram | 3 | 1999 | 1986 |
| Rock Branch | 3 | 2024 | 2005 |
| Hawkinsville | 2 | 1984 | 1976 |
| Maxeys | 2 | 2024 | 1966 |
| Hollonville | 2 | 2003 | 1973 |
| Siloam | 2 | 2012 | 1967 |
| Juliette | 2 | 1996 | 1978 |
| Sunny Side | 2 | 2018 | 2007 |
| Forsyth | 1 | 2022 | 1973 |
| Crest | 1 | 2002 | 1973 |
| Athens | 1 | 2024 | 1966 |
| Oakman | 1 | 1981 | 1966 |
| Cartersville | 1 | 2022 | 1980 |
| Henderson | 1 | 2024 | 1976 |
| Doles | 1 | 1988 | 1988 |
| Baldwin | 1 | 2022 | 1967 |
| Grovetown | 1 | 1994 | 1983 |
Grasshopper Sparrow Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.