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

Dickcissel Population Trend in Nebraska

All statesGrassland birds

Dickcissel in Nebraska has held roughly steady: down 3% on the route-weighted index since 1969.

-3%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 →
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 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 fall about 20% by 2029 — from 49 in 2024 to a central estimate of 40 (95% range 18–61). A 5-year backtest shows a typical error of ±17.3%, with 100% of held-out values landing inside the 95% band.

-20%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 →
40Projected 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 →
18–6195% 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 →
±17.3%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 fall about 20% by 2029 — from 49 in 2024 to a central estimate of 40 (95% range 18–61). A 5-year backtest shows a typical error of ±17.3%, with 100% of held-out values landing inside the 95% band.19672029
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 →
2025391861
2026391861
2027391861
2028391861
2029401861

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 →
Brownlee17820241990
Sumner15620241967
Sparta15520211967
Hampton13320242018
Berwyn12620101993
Brady11420241995
Murdock11020242018
Winside10520031967
Berwyn 29920212014
Humboldt9620242018
Liberty9220031967
Table8820241973
Liberty 38620242009
Bartley8520241967
Ponca7720242018
Winside 27020222005
Wheeler Co6720241980
Richland6420241968
Kenesaw6320241967
Midway6320231967
Belvidere6220241967
Hendley5920242018
Surprise5820241967
Culbertson5820242018
Tilden5720242019

Dickcissel Population Trend in Other States

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

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