BirdAnalyst
Species · Alabama · BBS 2025 Release · 1966–2024

Hairy Woodpecker Population Trend in Alabama

All statesForest birds

Hairy Woodpecker in Alabama has held roughly steady: up 7% on the route-weighted index since 1968.

+7%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 →
90Routes 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 Hairy Woodpecker Trends in AlabamaNotable 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 Alabama. See the full index history below.

Hairy Woodpecker Population Forecast in Alabama

If the recent trend holds, Hairy Woodpecker in Alabama is projected to fall about 47% by 2029 — from 0.40 in 2024 to a central estimate of 0.21 (95% range 0.00–0.44). A 5-year backtest shows a typical error of ±31.7%, with 100% of held-out values landing inside the 95% band.

-47%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 →
0.21Projected 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 →
0.00–0.4495% 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 →
±31.7%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 Alabama is projected to fall about 47% by 2029 — from 0.40 in 2024 to a central estimate of 0.21 (95% range 0.00–0.44). A 5-year backtest shows a typical error of ±31.7%, 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 →
20250.220.000.44
20260.220.000.44
20270.220.000.44
20280.210.000.44
20290.210.000.44

Hairy Woodpecker Survey Routes in Alabama

Routes recording Hairy Woodpecker in Alabama.
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 →
Lakeview420241999
Hillsboro219941971
Pine Grove220211976
Smyer Lake220241966
Cottonton220231966
Millry220181970
Blocton219951969
Jena220091987
Holt220231993
Rock Chapel220232001
Madrid219971997
Elkmont220241990
Courtland220061997
Wedowee220232000
Gastonburg220242011
St Florian120241969
Trade120211967
Summitt119661966
Valhermoso Spgs119791976
Swaim120241991
Dawson119951966
Millerville120241969
Sunny Eve120111967
Greensport120241971
Mt Olive120141970

Hairy Woodpecker Population Trend in Other States

alaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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