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

Dickcissel Population Trend in Ohio

All statesGrassland birds

Dickcissel in Ohio has risen sharply: up 75% on the route-weighted index since 1968.

+75%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 →
49Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Dickcissel 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Dickcissel has risen sharply in Ohio: up 75% on the route-weighted index since 1968.

Dickcissel Population Forecast in Ohio

If the recent trend holds, Dickcissel in Ohio is projected to stay roughly flat through 2029, near 1.2 (95% range 0.39–2.0). A 5-year backtest shows a typical error of ±31.7%, with 80% of held-out values landing inside the 95% band.

+1%Change by 2029TrendPercent 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 →
1.2Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.39–2.095% 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 →
±31.7%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, Dickcissel in Ohio is projected to stay roughly flat through 2029, near 1.2 (95% range 0.39–2.0). A 5-year backtest shows a typical error of ±31.7%, with 80% of held-out values landing inside the 95% band.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 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 →
20251.10.321.9
20261.10.332.0
20271.20.352.0
20281.20.372.0
20291.20.392.0

Dickcissel Survey Routes in Ohio

Routes recording Dickcissel 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 →
Napoleon1620241969
New Dover1320222008
N Baltimore920191972
Bloomville820241996
Limestone820241991
Botkins720191993
Cosmos620191966
Kingsway420231966
Kalida420191966
London420002000
Enon420181987
Rome420181969
Kunkle320241996
Marion 2320242024
Port William320211998
Dunlap319691966
Vickery320241996
Ashley220182018
Stonecreek220122004
Troy219891967
Petersburg220032003
Kings Creek220151996
Marion220032003
Harveysburg 2220221998
Lattasburg220211995

Dickcissel Population Trend in Other States

alabamaarkansascoloradodelawaregeorgiaillinoisindianaiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananebraskanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawisconsinwyoming

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