BirdAnalyst
Species · Ohio · BBS 2025 Release · 1966–2024

Vesper Sparrow Population Trend in Ohio

All statesGrassland birds

Vesper Sparrow in Ohio has collapsed: down 89% on the route-weighted index since 1968.

-89%Since 1968
73Routes In State
58Years

Notable Vesper Sparrow Trends in Ohio

long arc declinecomputed index

Vesper Sparrow has collapsed in Ohio: down 89% on the route-weighted index since 1968.

Vesper Sparrow Population Forecast in Ohio

If the recent trend holds, Vesper Sparrow in Ohio is projected to fall about 100% by 2029 — from 0.45 in 2024 to a central estimate of 0.00 (95% range 0.00–1.7). A 5-year backtest shows a typical error of ±45.9%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.795% range
±45.9%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
20250.230.002.0
20260.140.001.9
20270.060.001.8
20280.000.001.7
20290.000.001.7

Vesper Sparrow Survey Routes in Ohio

Routes recording Vesper Sparrow in Ohio.
Bismark2919951967
Kenton1820131966
Xenia919741966
N Baltimore620181966
Meadowbrook620011966
Newport619941966
Bloomville520241992
Wilmington419961966
Peru319781966
Cosmos320121966
Winterset319721967
Vickery320241996
Lockport220211966
Napoleon220231966
Marion 2220242024
Ashley220041988
Garrettsvile219901980
Strongsville219791966
Herner Crns219881967
Kalida220191966
Troy219961966
Fulton220241966
South Olive219941994
New Somerset219791966
Darrtown220191966

Vesper Sparrow Population Trend in Other States

arizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonpennsylvaniasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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