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

Western Meadowlark Population Trend in Nevada

All statesGrassland birds

Western Meadowlark in Nevada has held roughly steady: down 5% on the route-weighted index since 1970.

-5%Since 1970TrendPercent 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 →
49Routes 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 →
57YearsYears 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 NevadaNotable 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 Nevada. See the full index history below.

Western Meadowlark Population Forecast in Nevada

If the recent trend holds, Western Meadowlark in Nevada is projected to rise about 55% by 2030 — from 25 in 2025 to a central estimate of 38 (95% range 17–60). A 5-year backtest shows a typical error of ±28%, with 100% of held-out values landing inside the 95% band.

+55%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 →
38Projected 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 →
17–6095% 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 →
±28%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 Nevada is projected to rise about 55% by 2030 — from 25 in 2025 to a central estimate of 38 (95% range 17–60). A 5-year backtest shows a typical error of ±28%, with 100% of held-out values landing inside the 95% band.19682030
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 →
2026371659
2027371659
2028381659
2029381659
2030381760

Western Meadowlark Survey Routes in Nevada

Routes recording Western Meadowlark in Nevada.
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 →
Oreana17620032002
Midas16320251974
Toiyabe Nf12920241987
Charleston Reservoir8220242024
Sutcliffe7819721968
Virgin Creek7820181995
Ruby Valley 27620242004
Humboldt Nf 27320252021
Carson River6120022001
Piute Mdws5920252005
Dinner Sta5919931968
Majors Place5620251968
Ruby Valley5620011997
Sand Pass4720251987
Ranchogrande4120241988
Mill City4120232013
Humboldt Nf4020191993
Gardnerville 23720252013
Mizpah3320241988
Cortez2820251968
Rye Patch2519871968
Walker Can2320241968
Darroughs Hot Spgs2320242000
Calico Spr1619741968
Illipah1620191968

Western Meadowlark Population Trend in Other States

arizonacaliforniacoloradoidahoillinoisindianaiowakansaskentuckymichiganminnesotamissourimontananebraskanew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniasouth-dakotatexasutahwashingtonwisconsinwyoming

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