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

Bobolink Population Trend in Ohio

All statesGrassland birds

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

-89%Since 1968
69Routes In State
58Years

Notable Bobolink Trends in Ohio

long arc declinecomputed index

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

Bobolink Population Forecast in Ohio

If the recent trend holds, Bobolink in Ohio is projected to fall about 100% by 2029 — from 0.32 in 2024 to a central estimate of 0.00 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±96.5%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.295% range
±96.5%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
20250.000.001.2
20260.000.001.2
20270.000.001.2
20280.000.001.2
20290.000.001.2

Bobolink Survey Routes in Ohio

Routes recording Bobolink in Ohio.
Wayland2320171992
Bismark1219951967
Newport1219941966
Xenia920161966
Graytown819841966
Garrettsvile819911966
Valley City820171996
Kunkle620231992
Marion619831966
Meadowbrook519991991
Ashley419911988
Birmingham420241989
Casstown420022002
Napoleon320241966
Kalida320061966
No Kenton320041966
Kenton320031966
New Somerset319891972
Dunlap319841967
Hiram320211992
Kingsway220171966
Peru219781966
Herner Crns220181966
Troy219951967
Coshocton219901990

Bobolink Population Trend in Other States

californiacoloradoconnecticutidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoregonpennsylvaniarhode-islandsouth-dakotautahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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