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

Dickcissel Population Trend in Nebraska

All statesGrassland birds

Dickcissel in Nebraska has held roughly steady: down 5% on the route-weighted index since 1969.

-5%Since 1969TrendPercent 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 →
75Routes 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 →
58YearsYears 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 NebraskaNotable 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 Dickcissel in Nebraska. See the full index history below.

Dickcissel Population Forecast in Nebraska

If the recent trend holds, Dickcissel in Nebraska is projected to stay roughly flat through 2030, near 40 (95% range 19–61). A 5-year backtest shows a typical error of ±15.3%, with 100% of held-out values landing inside the 95% band.

-1%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 →
40Projected 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 →
19–6195% 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 →
±15.3%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 Nebraska is projected to stay roughly flat through 2030, near 40 (95% range 19–61). A 5-year backtest shows a typical error of ±15.3%, with 100% of held-out values landing inside the 95% band.19672030
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 →
2026391861
2027391861
2028401861
2029401861
2030401961

Dickcissel Survey Routes in Nebraska

Routes recording Dickcissel in Nebraska.
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 →
Belvidere12720251967
Berwyn12620101993
Sparta12220251967
Surprise12120251967
Murdock10920252018
Winside10520031967
Hampton10120252018
Brownlee9520251990
Liberty9220031967
Liberty 39120252009
Ringgold8520251985
Sumner7620251967
Midway7620251967
Brady7520251995
Winside 27020222005
Humboldt6720252018
Gretna 26720252019
Bartley6420251967
Chambers6320252023
Culbertson6020252018
Eagle Creek5820251967
Ponca5420252018
Berwyn 25420252014
Richland5320251968
Petersburg5320251969

Dickcissel Population Trend in Other States

alabamaarkansascoloradodelawaregeorgiaillinoisindianaiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawisconsinwyoming

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