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

Yellow-throated Vireo Population Trend in West Virginia

All statesForest birds

Yellow-throated Vireo in West Virginia has risen sharply: up 65% on the route-weighted index since 1968.

+65%Since 1968TrendPercent 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 →
61Routes 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 →
59YearsYears 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-throated Vireo 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 →

Yellow-throated Vireo has risen sharply in West Virginia: up 65% on the route-weighted index since 1968.

Yellow-throated Vireo Population Forecast in West Virginia

If the recent trend holds, Yellow-throated Vireo in West Virginia is projected to rise about 43% by 2030 — from 2.5 in 2025 to a central estimate of 3.6 (95% range 2.4–4.7). A 5-year backtest shows a typical error of ±20.1%, with 100% of held-out values landing inside the 95% band.

+43%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 →
3.6Projected 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 →
2.4–4.795% 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 →
±20.1%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-throated Vireo in West Virginia is projected to rise about 43% by 2030 — from 2.5 in 2025 to a central estimate of 3.6 (95% range 2.4–4.7). A 5-year backtest shows a typical error of ±20.1%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20263.52.34.6
20273.52.44.6
20283.52.44.7
20293.62.44.7
20303.62.44.7

Yellow-throated Vireo Survey Routes in West Virginia

Routes recording Yellow-throated Vireo 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 →
Yawkey1120241966
Josephs Mill1020241993
Yellow Spg920221972
Ringgold920252025
Cedarville820231982
Greer820231966
Hubbardstown720251966
Clendenin720251979
Olcott720241966
Smithfield720251993
Nicut520251986
Strange Crk520251982
Meadowville520251977
Sleepy Creek519901968
Stollings420211986
Pt Pleasant420251978
Meadland420252002
Three Forks420251971
Slate420251980
Rockport420251966
Washburn420251974
Moundsville420251972
Hix320251970
Smoot320251980
Bramwell320231978

Yellow-throated Vireo Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawisconsin

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