Species · Mississippi · BBS 2025 Release · 1966–2024
Grasshopper Sparrow Population Trend in Mississippi
Grasshopper Sparrow in Mississippi has collapsed: down 96% on the route-weighted index since 1972.
-96%Since 1972
8Routes In State
25Years
Notable Grasshopper Sparrow Trends in Mississippi
long arc declinecomputed index
Grasshopper Sparrow has collapsed in Mississippi: down 96% on the route-weighted index since 1972.
Grasshopper Sparrow Population Forecast in Mississippi
If the recent trend holds, Grasshopper Sparrow in Mississippi is projected to fall about 100% by 2009 — from 0.06 in 2004 to a central estimate of 0.00 (95% range 0.00–0.62). A 5-year backtest shows a typical error of ±598.9%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2009
0.00Projected 2009 index
0.00–0.6295% range
±598.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2005 | 0.00 | 0.00 | 0.62 |
| 2006 | 0.00 | 0.00 | 0.62 |
| 2007 | 0.00 | 0.00 | 0.62 |
| 2008 | 0.00 | 0.00 | 0.62 |
| 2009 | 0.00 | 0.00 | 0.62 |
Grasshopper Sparrow Survey Routes in Mississippi
Grasshopper Sparrow Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.