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

Dickcissel Population Trend in Oklahoma

All statesGrassland birds

Dickcissel in Oklahoma has risen sharply: up 67% on the route-weighted index since 1969.

+67%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 →
68Routes 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 OklahomaNotable 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 Oklahoma: up 67% on the route-weighted index since 1969.

Dickcissel Population Forecast in Oklahoma

If the recent trend holds, Dickcissel in Oklahoma is projected to fall about 27% by 2030 — from 72 in 2025 to a central estimate of 53 (95% range 35–70). A 5-year backtest shows a typical error of ±18.6%, with 80% of held-out values landing inside the 95% band.

-27%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 →
53Projected 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 →
35–7095% 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 →
±18.6%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 Oklahoma is projected to fall about 27% by 2030 — from 72 in 2025 to a central estimate of 53 (95% range 35–70). A 5-year backtest shows a typical error of ±18.6%, with 80% 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 →
2026513469
2027513469
2028523469
2029523570
2030533570

Dickcissel Survey Routes in Oklahoma

Routes recording Dickcissel in Oklahoma.
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 →
Hooker21020251992
Foraker20420251992
Clear Lake19420251992
Wakita15520161968
Ft Sill East14819941994
Indianola14020251967
Welch12520251967
Lookout12220251967
Ft Sill West11519941994
Cooperton11420251992
Colony11319951995
Wainwright11220131992
Cashion10120241992
Grimes9920251967
Phroso9420251991
Hunter8020241992
Peoria7920231967
Matoy7920251992
Wichita Mtns7819941994
Douglas7320221967
Woodward7320251992
Hardesty6720241970
Phillips6220251968
Mill Creek6220251967
Sandbluff6120251992

Dickcissel Population Trend in Other States

alabamaarkansascoloradodelawaregeorgiaillinoisindianaiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananebraskanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiopennsylvaniasouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawisconsinwyoming

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