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Species · Missouri · BBS 2025 Release · 1966–2024

Grasshopper Sparrow Population Trend in Missouri

All statesGrassland birds

Grasshopper Sparrow in Missouri has fallen sharply: down 55% on the route-weighted index since 1969.

-55%Since 1969
80Routes In State
57Years

Notable Grasshopper Sparrow Trends in Missouri

long arc declinecomputed index

Grasshopper Sparrow has fallen sharply in Missouri: down 55% on the route-weighted index since 1969.

Grasshopper Sparrow Population Forecast in Missouri

If the recent trend holds, Grasshopper Sparrow in Missouri is projected to rise about 131% by 2029 — from 1.4 in 2024 to a central estimate of 3.3 (95% range 0.00–7.5). A 5-year backtest shows a typical error of ±182.3%, with 100% of held-out values landing inside the 95% band.

+131%Change by 2029
3.3Projected 2029 index
0.00–7.595% range
±182.3%Backtest error
19672029
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
20253.70.007.9
20263.60.007.8
20273.50.007.7
20283.40.007.6
20293.30.007.5

Grasshopper Sparrow Survey Routes in Missouri

Routes recording Grasshopper Sparrow in Missouri.
Hamilton1419851972
New Hampton1320242014
Lucerne1320212016
Bolckow919921967
Emden920242017
Kahoka719981967
Kirksville720241994
Laclede620241994
Luray620242015
Warren519791967
Danville420241967
Huntsville420241967
Stet419951972
Frazier420241967
Sticklervill420241970
Graniteville419861986
Barnard420191999
Peace Valley320231980
Washington319761967
Hayden320191977
Ohio320241972
Sni Mills319901970
Rensselaer320241971
Madison320241971
Tarkio319891968

Grasshopper Sparrow Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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