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

Northern House Wren Population Trend in West Virginia

All statesForest birds

Northern House Wren in West Virginia has held roughly steady: up 2% on the route-weighted index since 1968.

+2%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 →
62Routes 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 Northern House Wren 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 Northern House Wren in West Virginia. See the full index history below.

Northern House Wren Population Forecast in West Virginia

If the recent trend holds, Northern House Wren in West Virginia is projected to stay roughly flat through 2029, near 4.5 (95% range 2.3–6.7). A 5-year backtest shows a typical error of ±6.8%, with 100% of held-out values landing inside the 95% band.

-4%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 →
4.5Projected 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 →
2.3–6.795% 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 →
±6.8%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, Northern House Wren in West Virginia is projected to stay roughly flat through 2029, near 4.5 (95% range 2.3–6.7). A 5-year backtest shows a typical error of ±6.8%, 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 →
20254.52.36.7
20264.52.36.7
20274.52.36.7
20284.52.36.7
20294.52.36.7

Northern House Wren Survey Routes in West Virginia

Routes recording Northern House Wren 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 →
Green Bank1820241977
Denmar1620241980
Valley Head1520241966
Mt Storm1219751966
Meadland1120241997
Bemis1120242001
Meadowville920241972
Martinsburg920241966
Sleepy Creek819901966
Clinton820241966
Three Forks720241971
Berryburg719961975
Ruthbelle720241975
Richwood620241980
Sugar Grove620241966
Greer620231966
Glade Run 2620242003
Pedro520241979
Hubbardstown520181976
Sutton520241978
Glady520242001
Hix420241973
Bramwell420231978
Fayetteville419961980
Smithfield420231993

Northern House Wren Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwisconsinwyoming

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