BirdAnalyst
Species · Ohio · BBS 2026 Release · 1966–2025

Song Sparrow Population Trend in Ohio

All statesForest birds

Song Sparrow in Ohio has edged down: down 13% on the route-weighted index since 1968.

-13%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 Song Sparrow 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 Song Sparrow in Ohio. See the full index history below.

Song Sparrow Population Forecast in Ohio

If the recent trend holds, Song Sparrow in Ohio is projected to stay roughly flat through 2030, near 30 (95% range 21–40). A 5-year backtest shows a typical error of ±6.2%, with 100% of held-out values landing inside the 95% band.

-7%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 →
30Projected 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 →
21–4095% 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 →
±6.2%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, Song Sparrow in Ohio is projected to stay roughly flat through 2030, near 30 (95% range 21–40). A 5-year backtest shows a typical error of ±6.2%, 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 →
2026312241
2027312141
2028312141
2029312140
2030302140

Song Sparrow Survey Routes in Ohio

Routes recording Song Sparrow 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 →
Harveysburg10119961966
Omega7420241966
Bismark7219951967
Vickery6820251996
Dunlap6619881966
Lucerne6520251992
Marion 26020252024
Napoleon5520251966
Stonecreek5420251996
Dresden5220251966
Wilmington5019961966
Fulton4920251966
Darrtown4920211966
Bloomville4820251992
Tecumseh4819821966
Marion4720231966
Ashley4720181988
Garrettsvile4619911966
Ash Ridge4620211992
Newport4519941966
Cumberland4520171966
Smithfield4420251966
Kalida4220251966
Newcomerstwn4219951966
No Kenton4120251966

Song Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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