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

Baltimore Oriole Population Trend in West Virginia

All statesGeneralists

Baltimore Oriole in West Virginia has declined: down 38% on the route-weighted index since 1968.

-38%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 Baltimore Oriole 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 →

No notable trend signals for Baltimore Oriole in West Virginia. See the full index history below.

Baltimore Oriole Population Forecast in West Virginia

If the recent trend holds, Baltimore Oriole in West Virginia is projected to rise about 42% by 2029 — from 1.8 in 2024 to a central estimate of 2.5 (95% range 1.1–3.8). A 5-year backtest shows a typical error of ±39.2%, with 100% of held-out values landing inside the 95% band.

+42%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 →
2.5Projected 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 →
1.1–3.895% 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 →
±39.2%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, Baltimore Oriole in West Virginia is projected to rise about 42% by 2029 — from 1.8 in 2024 to a central estimate of 2.5 (95% range 1.1–3.8). A 5-year backtest shows a typical error of ±39.2%, 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 →
20252.61.23.9
20262.51.23.9
20272.51.23.9
20282.51.23.9
20292.51.13.8

Baltimore Oriole Survey Routes in West Virginia

Routes recording Baltimore Oriole 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 →
Mo Of Seneca1920241969
Mt Storm819751969
Smoot720221980
Rio719951974
Ruthbelle720241975
Sugar Grove520241966
Washburn520221975
Sleepy Creek519891966
Pedro420231979
Pt Pleasant420231973
Albright419741966
Martinsburg420241966
Clinton420241966
Henderson420182002
Arlee319791968
Fayetteville319961980
Meadland320241997
Strange Crk320151992
Moundsville320241972
Berryburg319961975
Meadowville320231972
Stollings220192002
Bramwell220221980
Ghent220241978
Hanover220211984

Baltimore Oriole Population Trend in Other States

alabamaarkansascaliforniacoloradoconnecticutdelawaregeorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawisconsinwyoming

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