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

Common Raven Population Trend in West Virginia

All statesGeneralists

Common Raven in West Virginia has surged: up 18× on the route-weighted index since 1973.

18×Since 1973TrendPercent 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 →
55Routes 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 →
54YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Common Raven 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 →

Common Raven has surged in West Virginia: up 18× on the route-weighted index since 1973.

Common Raven Population Forecast in West Virginia

If the recent trend holds, Common Raven in West Virginia is projected to stay roughly flat through 2030, near 2.5 (95% range 1.7–3.2). A 5-year backtest shows a typical error of ±17.8%, with 100% of held-out values landing inside the 95% band.

+8%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 →
2.5Projected 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 →
1.7–3.295% 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 →
±17.8%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, Common Raven in West Virginia is projected to stay roughly flat through 2030, near 2.5 (95% range 1.7–3.2). A 5-year backtest shows a typical error of ±17.8%, with 100% of held-out values landing inside the 95% band.19692030
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 →
20262.31.53.1
20272.31.63.1
20282.41.63.2
20292.41.73.2
20302.51.73.2

Common Raven Survey Routes in West Virginia

Routes recording Common Raven 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 →
Denmar1120251992
Rio1119941975
Wymer1020151995
Smoot920252006
Lost River920251996
Glade Run820021988
Pedro720251986
Mo Of Seneca620251969
Yellow Spg620231972
Ringgold620252025
Three Forks520171985
Richwood520251983
Shanghai520251995
Hix420251986
Welch420251992
Bemis420252001
Cedarville420231995
Sugar Grove420251984
Ruthbelle420251994
Green Bank320241977
Dailey320241974
Moundsville320242014
Smithfield320212017
Clinton320252016
Glady320232001

Common Raven Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutgeorgiaidahokentuckymainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinatennesseetexasutahvermontvirginiawashingtonwisconsinwyoming

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