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

Dickcissel Population Trend in Wyoming

All statesGrassland birds

Dickcissel in Wyoming has risen sharply: up 73% on the route-weighted index since 1990.

+73%Since 1990TrendPercent 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 →
21Routes 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 →
28YearsYears 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 WyomingNotable 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 Wyoming: up 73% on the route-weighted index since 1990.

Dickcissel Population Forecast in Wyoming

If the recent trend holds, Dickcissel in Wyoming is projected to rise about 64% by 2029 — from 0.16 in 2024 to a central estimate of 0.26 (95% range 0.00–0.62). A 5-year backtest shows a typical error of ±304.6%, with 100% of held-out values landing inside the 95% band.

+64%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 →
0.26Projected 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 →
0.00–0.6295% 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 →
±304.6%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 Wyoming is projected to rise about 64% by 2029 — from 0.16 in 2024 to a central estimate of 0.26 (95% range 0.00–0.62). A 5-year backtest shows a typical error of ±304.6%, with 100% of held-out values landing inside the 95% band.19692029
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 →
20250.240.000.60
20260.240.000.61
20270.250.000.61
20280.250.000.62
20290.260.000.62

Dickcissel Survey Routes in Wyoming

Routes recording Dickcissel in Wyoming.
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 →
Hampshire920182018
Riverview720182015
Lingle520241988
Redbird219691969
Brookhurst220222017
Recluse220031996
Seely219901990
Lusk220242012
Pine Bluff220241998
Welch220182012
Sundance120171988
Midvale119881988
Seely 2120242006
Gvnt Valley120241997
Yoder120241988
Dayton120242018
Arvada120222022
Mayoworth120042002
Sussex120242017
Moskee 3120222022
Chugwater120182011

Dickcissel Population Trend in Other States

alabamaarkansascoloradodelawaregeorgiaillinoisindianaiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananebraskanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawisconsin

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