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Species · Oklahoma · BBS 2026 Release · 1966–2025

Western Meadowlark Population Trend in Oklahoma

All statesGrassland birds

Western Meadowlark in Oklahoma has held roughly steady: up 8% on the route-weighted index since 1969.

+8%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 →
46Routes 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 Western Meadowlark 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 →

No notable trend signals for Western Meadowlark in Oklahoma. See the full index history below.

Western Meadowlark Population Forecast in Oklahoma

If the recent trend holds, Western Meadowlark in Oklahoma is projected to rise about 41% by 2030 — from 18 in 2025 to a central estimate of 26 (95% range 10–41). A 5-year backtest shows a typical error of ±21.5%, with 100% of held-out values landing inside the 95% band.

+41%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 →
26Projected 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 →
10–4195% 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 →
±21.5%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, Western Meadowlark in Oklahoma is projected to rise about 41% by 2030 — from 18 in 2025 to a central estimate of 26 (95% range 10–41). A 5-year backtest shows a typical error of ±21.5%, with 100% 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 →
2026261042
2027261042
2028261041
2029261041
2030261041

Western Meadowlark Survey Routes in Oklahoma

Routes recording Western Meadowlark 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 →
Hooker23420251992
Clear Lake21620251992
Hardesty16320241970
Keyes13920241992
Beaver13020181979
Felt10820241968
Rosston6220181967
Reed3220191968
Chester2919881967
Cooperton2820251992
Colony1719951995
Randlett1320051971
Arapaho720141992
Douglas620211967
Lookout620251967
Eagle City520051967
Tegarden520151967
Tatums520092004
Cookietown420061969
Hollis420251993
Woodward420251992
Duncan420171990
Mill Creek319991973
Elgin320152013
Choctaw319931993

Western Meadowlark Population Trend in Other States

arizonacaliforniacoloradoidahoillinoisindianaiowakansaskentuckymichiganminnesotamissourimontananebraskanevadanew-mexiconew-yorknorth-dakotaohiooregonpennsylvaniasouth-dakotatexasutahwashingtonwisconsinwyoming

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