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

Dickcissel Population Trend in Mississippi

All statesGrassland birds

Dickcissel in Mississippi has surged: up 111% on the route-weighted index since 1968.

+111%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 →
34Routes 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 Dickcissel Trends in MississippiNotable 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 surged in Mississippi: up 111% on the route-weighted index since 1968.

Dickcissel Population Forecast in Mississippi

If the recent trend holds, Dickcissel in Mississippi is projected to stay roughly flat through 2030, near 9.7 (95% range 2.6–17). A 5-year backtest shows a typical error of ±27.8%, with 100% of held-out values landing inside the 95% band.

-6%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 →
9.7Projected 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 →
2.6–1795% 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 →
±27.8%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 Mississippi is projected to stay roughly flat through 2030, near 9.7 (95% range 2.6–17). A 5-year backtest shows a typical error of ±27.8%, 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 →
20269.52.517
20279.62.517
20289.62.617
20299.62.617
20309.72.617

Dickcissel Survey Routes in Mississippi

Routes recording Dickcissel in Mississippi.
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 →
Dundee7420221970
Dahomey Nwr6120252011
Tippo5920251996
Isola5820221968
Winterville2820112009
Shelby2520252009
Commerce2319931966
Macon1920251969
Aberdeen1720251970
Moon1620211996
Tallahatchie1320251996
Olive Branch1220011966
Panther Swamp Nwr920182016
Benton820181972
Cockrum320231966
Fayette219701969
Walthall219871971
Eagle Lake220252012
Tchula 3220241995
Olive Branch 2220222016
Embry220131989
Beverly119911969
Tchula119751970
Utica119941980
Lucien119721972

Dickcissel Population Trend in Other States

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

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