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Species · Ohio · BBS 2025 Release · 1966–2024

Grasshopper Sparrow Population Trend in Ohio

All statesGrassland birds

Grasshopper Sparrow in Ohio has collapsed: down 94% on the route-weighted index since 1968.

-94%Since 1968
76Routes In State
58Years

Notable Grasshopper Sparrow Trends in Ohio

long arc declinecomputed index

Grasshopper Sparrow has collapsed in Ohio: down 94% on the route-weighted index since 1968.

Grasshopper Sparrow Population Forecast in Ohio

If the recent trend holds, Grasshopper Sparrow in Ohio is projected to fall about 100% by 2029 — from 0.47 in 2024 to a central estimate of 0.00 (95% range 0.00–1.9). A 5-year backtest shows a typical error of ±290.7%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.995% range
±290.7%Backtest error
19662029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.000.001.9
20260.000.001.9
20270.000.001.9
20280.000.001.9
20290.000.001.9

Grasshopper Sparrow Survey Routes in Ohio

Routes recording Grasshopper Sparrow in Ohio.
Newport1219941966
Lenox619811966
Tecumseh519821966
Stonecreek420221996
New Dover420221966
W Carrollton420081989
Hiram420082006
Lockport319961974
Troy319951966
Kenton320241966
Marion320051966
Bismark219951969
Ashley220131988
Mohican S.F.219951995
Herner Crns220051966
No Kenton220241966
Lucerne220112000
Maysville220121992
Winterset219831967
Darrtown220181966
Harveysburg219951966
Wilmington219941966
Bolins Mills219951967
Coal Run219921966
Rome220241966

Grasshopper Sparrow Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.