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Species · Alabama · BBS 2025 Release · 1966–2024

Red-bellied Woodpecker Population Trend in Alabama

All statesForest birds

Red-bellied Woodpecker in Alabama has risen sharply: up 51% on the route-weighted index since 1968.

+51%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 →
109Routes 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 Red-bellied 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 →

long arc increasecomputed 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 →

Red-bellied Woodpecker has risen sharply in Alabama: up 51% on the route-weighted index since 1968.

Red-bellied Woodpecker Population Forecast in Alabama

If the recent trend holds, Red-bellied Woodpecker in Alabama is projected to stay roughly flat through 2029, near 15 (95% range 13–17). A 5-year backtest shows a typical error of ±4.7%, with 100% of held-out values landing inside the 95% band.

-6%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 →
15Projected 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 →
13–1795% 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 →
±4.7%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, Red-bellied Woodpecker in Alabama is projected to stay roughly flat through 2029, near 15 (95% range 13–17). A 5-year backtest shows a typical error of ±4.7%, 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 →
2025141316
2026151316
2027151316
2028151317
2029151317

Red-bellied Woodpecker Survey Routes in Alabama

Routes recording Red-bellied 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 →
Epes3820241980
Gainestown Ferry3520151999
Newton3120241966
Warrior Std3020241966
Cottonton3020241966
Sprague2920241966
Rock Chapel2920241995
Mt. Gilead2920241993
Brundidge2820211966
Citronelle2720231997
Chacaloochee Bay2720192009
Eufaula2620241996
Grangeburg2520241966
Whitehall2520241983
Bon Secour2520231993
Fairview2420241989
Gastonburg2420241996
Stevenson2320241996
Linden2220231968
Calebee2220241993
Grove Hill2120231983
Odenville2020241996
Riverside2020131999
Sprott-Cahaba Riv2020141999
Millerville1920241966

Red-bellied Woodpecker Population Trend in Other States

arkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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