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

Dickcissel Population Trend in Alabama

All statesGrassland birds

Dickcissel in Alabama has held roughly steady: up 4% on the route-weighted index since 1968.

+4%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 →
38Routes 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 AlabamaNotable 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 Alabama. See the full index history below.

Dickcissel Population Forecast in Alabama

If the recent trend holds, Dickcissel in Alabama is projected to rise about 21% by 2029 — from 0.35 in 2024 to a central estimate of 0.43 (95% range 0.12–0.73). A 5-year backtest shows a typical error of ±12.3%, with 100% of held-out values landing inside the 95% band.

+21%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 →
0.43Projected 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 →
0.12–0.7395% 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 →
±12.3%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 Alabama is projected to rise about 21% by 2029 — from 0.35 in 2024 to a central estimate of 0.43 (95% range 0.12–0.73). A 5-year backtest shows a typical error of ±12.3%, with 100% 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 →
20250.410.100.72
20260.410.110.72
20270.420.110.72
20280.420.120.73
20290.430.120.73

Dickcissel Survey Routes in Alabama

Routes recording Dickcissel in Alabama.
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 →
Rock Chapel1120241995
Wheeler Dam1020231993
Carter Grove1020112003
Pine Grove420182000
Epes320241980
Woodville320092008
Oneonta320112011
Hillsboro219921969
Borden Springs 2220022002
Guntersville220001996
Holt219961996
Stevenson220242024
Talladega220192001
St Florian120241967
Valhermoso Spgs120051967
Swaim120211966
Dawson119891971
Greensport120242000
Mt Olive119931993
Howard119791978
Harrell120021978
Billingsley119961989
Wallsboro119971997
Lanett119931993
Kymulga120142008

Dickcissel Population Trend in Other States

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

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