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Species · Wyoming · BBS 2026 Release · 1966–2025

Hairy Woodpecker Population Trend in Wyoming

All statesForest birds

Hairy Woodpecker in Wyoming has edged up: up 22% on the route-weighted index since 1974.

+22%Since 1974TrendPercent 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 →
48Routes 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 →
53YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Hairy Woodpecker Trends in WyomingNotable 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 Hairy Woodpecker in Wyoming. See the full index history below.

Hairy Woodpecker Population Forecast in Wyoming

If the recent trend holds, Hairy Woodpecker in Wyoming is projected to stay roughly flat through 2030, near 0.25 (95% range 0.03–0.47). A 5-year backtest shows a typical error of ±57.3%, with 100% of held-out values landing inside the 95% band.

+1%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 →
0.25Projected 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 →
0.03–0.4795% 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 →
±57.3%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, Hairy Woodpecker in Wyoming is projected to stay roughly flat through 2030, near 0.25 (95% range 0.03–0.47). A 5-year backtest shows a typical error of ±57.3%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20260.240.020.47
20270.240.020.47
20280.240.020.47
20290.250.020.47
20300.250.030.47

Hairy Woodpecker Survey Routes in Wyoming

Routes recording Hairy Woodpecker in Wyoming.
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 →
Savery619951989
Fox Park520251992
Fiddler Lk420251982
Savery 2420252007
Hayden Val319851985
Crazy Woman320241979
Moran320162002
Fletcher Pk320251982
Ne Entrance220241990
Sundance220251975
Colter Bay219981968
Moskee219981980
Colter Bay 2220242019
Ryan Park220221993
Moskee 2220182003
Cody120102005
Basin119741974
Yellowstone120231988
Dubois120131977
Prior Flats120251991
Brookhurst119861972
Seely 2120192005
Buford120231993
Mammoth120141983
West Thumb119821982

Hairy Woodpecker Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

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