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Species · West Virginia · BBS 2025 Release · 1966–2024

Hooded Warbler Population Trend in West Virginia

All statesForest birds

Hooded Warbler in West Virginia has surged: up 152% on the route-weighted index since 1968.

+152%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 →
60Routes 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 Hooded Warbler 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 →

Hooded Warbler has surged in West Virginia: up 152% on the route-weighted index since 1968.

Hooded Warbler Population Forecast in West Virginia

If the recent trend holds, Hooded Warbler in West Virginia is projected to stay roughly flat through 2029, near 4.4 (95% range 3.0–5.7). A 5-year backtest shows a typical error of ±10.6%, with 100% of held-out values landing inside the 95% band.

-9%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 →
4.4Projected 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 →
3.0–5.795% 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 →
±10.6%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, Hooded Warbler in West Virginia is projected to stay roughly flat through 2029, near 4.4 (95% range 3.0–5.7). A 5-year backtest shows a typical error of ±10.6%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20254.22.85.6
20264.22.85.6
20274.32.95.7
20284.32.95.7
20294.43.05.7

Hooded Warbler Survey Routes in West Virginia

Routes recording Hooded Warbler 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 →
Fayetteville2119961980
Three Forks1820241971
Bowden1820241993
Stollings1420211986
Hanover1420241980
Clear Creek1420241988
Strange Crk1420241982
Ghent1320241978
Yawkey1120241966
Meadowville1120241972
Richwood1020241980
Washburn920221974
Canaan820241974
Albright819741966
Bramwell720231978
Breeden720241986
Moundsville620241976
Sutton520241976
Henderson520232002
Olcott420241967
Valley Head420241966
Ruthbelle420241975
Hix320241971
Welch320231980
Berryburg319961977

Hooded Warbler Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianakentuckylouisianamarylandmassachusettsmichiganmississippimissourinew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvirginiawisconsin

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