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Species · Ohio · BBS 2026 Release · 1966–2025

Indigo Bunting Population Trend in Ohio

All statesForest birds

Indigo Bunting in Ohio has edged up: up 17% on the route-weighted index since 1968.

+17%Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
89Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Indigo Bunting Trends in OhioNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Indigo Bunting in Ohio. See the full index history below.

Indigo Bunting Population Forecast in Ohio

If the recent trend holds, Indigo Bunting in Ohio is projected to rise about 19% by 2030 — from 16 in 2025 to a central estimate of 19 (95% range 10–27). A 5-year backtest shows a typical error of ±38.4%, with 100% of held-out values landing inside the 95% band.

+19%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
19Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
10–2795% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±38.4%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Indigo Bunting in Ohio is projected to rise about 19% by 2030 — from 16 in 2025 to a central estimate of 19 (95% range 10–27). A 5-year backtest shows a typical error of ±38.4%, with 100% of held-out values landing inside the 95% band.19662030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2026191027
2027191027
2028191027
2029191027
2030191027

Indigo Bunting Survey Routes in Ohio

Routes recording Indigo Bunting in Ohio.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Harveysburg7119961966
Wilmington6419961966
Omega6220241966
Coal Run5619921966
Rome5120251966
Lucerne4320251992
Birmingham4320241988
Kings Creek3920151992
Dresden3920251966
Dell3820191993
Wilgus3820191992
Tecumseh3619821966
Greasy Ridge3219911966
Smithfield3020251966
Coshocton2919911990
Baxter Ridge2820251998
Tick Ridge2820191993
Fulton2620251966
Newcomerstwn2619951966
South Olive2620251993
West Elkton2520121992
Marion 22320252024
Stonecreek2320251996
Darrtown2220211966
Marion2020231966

Indigo Bunting Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.