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Species · West Virginia · BBS 2026 Release · 1966–2025

Golden-crowned Kinglet Population Trend in West Virginia

All statesForest birds

Golden-crowned Kinglet in West Virginia has surged: up 341% on the route-weighted index since 1976.

+341%Since 1976TrendPercent 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 →
13Routes 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 →
50YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Golden-crowned Kinglet Trends in West VirginiaNotable 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 →

Golden-crowned Kinglet has surged in West Virginia: up 341% on the route-weighted index since 1976.

Golden-crowned Kinglet Population Forecast in West Virginia

If the recent trend holds, Golden-crowned Kinglet in West Virginia is projected to rise about 84% by 2030 — from 0.44 in 2025 to a central estimate of 0.81 (95% range 0.34–1.3). A 5-year backtest shows a typical error of ±53.9%, with 100% of held-out values landing inside the 95% band.

+84%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 →
0.81Projected 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 →
0.34–1.395% 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 →
±53.9%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, Golden-crowned Kinglet in West Virginia is projected to rise about 84% by 2030 — from 0.44 in 2025 to a central estimate of 0.81 (95% range 0.34–1.3). A 5-year backtest shows a typical error of ±53.9%, with 100% of held-out values landing inside the 95% band.19742030
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 →
20260.760.291.2
20270.780.301.3
20280.790.311.3
20290.800.331.3
20300.810.341.3

Golden-crowned Kinglet Survey Routes in West Virginia

Routes recording Golden-crowned Kinglet in West Virginia.
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 →
Glade Run1320021988
Wymer1220151995
Glade Run 2920252003
Glady420252001
Bemis420252001
Ruthbelle320212013
Dailey220241974
Bowden220241999
Meadowville120251999
Canaan120251978
Denmar120221994
Richwood120042004
Green Bank120241999

Golden-crowned Kinglet Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutgeorgiaidahomainemarylandmassachusettsmichiganminnesotamontananevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooregonpennsylvaniasouth-dakotatennesseeutahvermontwashingtonwisconsinwyoming

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