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

Yellow Warbler Population Trend in Nevada

All statesForest birds

Yellow Warbler in Nevada has surged: up 19× on the route-weighted index since 1972.

19×Since 1972TrendPercent 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 →
44Routes 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 →
44YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Yellow Warbler 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 →

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 →

Yellow Warbler has surged in Nevada: up 19× on the route-weighted index since 1972.

Yellow Warbler Population Forecast in Nevada

If the recent trend holds, Yellow Warbler in Nevada is projected to rise about 20% by 2029 — from 3.8 in 2024 to a central estimate of 4.5 (95% range 1.4–7.6). A 5-year backtest shows a typical error of ±54.7%, with 100% of held-out values landing inside the 95% band.

+20%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 →
4.5Projected 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 →
1.4–7.695% 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 →
±54.7%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, Yellow Warbler in Nevada is projected to rise about 20% by 2029 — from 3.8 in 2024 to a central estimate of 4.5 (95% range 1.4–7.6). A 5-year backtest shows a typical error of ±54.7%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20254.21.17.3
20264.31.27.4
20274.41.27.5
20284.41.37.6
20294.51.47.6

Yellow Warbler Survey Routes in Nevada

Routes recording Yellow Warbler 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 →
Jean Lake6820071973
Ruby Valley5220011997
Meadow Vally4420241996
Humboldt Nf 23020242021
Jarbidge2120151997
Humboldt Nf1820191993
Comins Lake1020162005
Dinner Sta919931968
Willis820241988
Austin820182008
Toiyabe Nf720241988
Hiko720231968
Fish Creek420181997
Virgin Creek420181995
Ranchogrande320241988
Ruby Valley 2320242004
Gardnerville 2320242018
Hawthorne319971997
Dobbin Creek219851972
Beatty220151987
Carson River220022002
Oreana220032002
Piute Mdws120242013
Desert Nwr119951995
Midas120241995

Yellow Warbler Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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