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

Northern Bobwhite Population Trend in West Virginia

All statesGrassland birds

Northern Bobwhite in West Virginia has collapsed: down 100% on the route-weighted index since 1968.

-100%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 →
45Routes 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 →
46YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Northern Bobwhite 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 declinecomputed 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 →

Northern Bobwhite has collapsed in West Virginia: down 100% on the route-weighted index since 1968.

Northern Bobwhite Population Forecast in West Virginia

If the recent trend holds, Northern Bobwhite in West Virginia is projected to stay roughly flat through 2023, near 0.00 (95% range 0.00–6.1). A 5-year backtest shows a typical error of ±21634.9%, with 0% of held-out values landing inside the 95% band.

n/aChange by 2023TrendPercent 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 →
0.00Projected 2023 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–6.195% 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 →
±21634.9%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, Northern Bobwhite in West Virginia is projected to stay roughly flat through 2023, near 0.00 (95% range 0.00–6.1). A 5-year backtest shows a typical error of ±21634.9%, with 0% of held-out values landing inside the 95% band.19662023
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 →
20190.000.006.1
20200.000.006.1
20210.000.006.1
20220.000.006.1
20230.000.006.1

Northern Bobwhite Survey Routes in West Virginia

Routes recording Northern Bobwhite 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 →
Arlee1319771966
Berryburg1319761975
Nicut720032003
Washburn719761974
Sleepy Creek319901966
Clear Creek219951988
Pt Pleasant220051973
Hubbardstown219921966
Clendenin220161993
Sutton220131976
Sugar Grove219861966
Monongah219821967
Bebee219771972
Rio219931974
Clinton219781966
Hix119951970
Smoot120001980
Pedro120151979
Ghent119791978
Hanover119801980
Spencer120002000
Paradise119991966
Yawkey119771966
Olcott120131966
Canaan119891974

Northern Bobwhite Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwisconsinwyoming

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