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Species · Indiana · BBS 2025 Release · 1966–2024

Red-bellied Woodpecker Population Trend in Indiana

All statesForest birds

Red-bellied Woodpecker in Indiana has surged: up 86% on the route-weighted index since 1968.

+86%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 →
68Routes 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 IndianaNotable 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 surged in Indiana: up 86% on the route-weighted index since 1968.

Red-bellied Woodpecker Population Forecast in Indiana

If the recent trend holds, Red-bellied Woodpecker in Indiana is projected to rise about 19% by 2029 — from 7.8 in 2024 to a central estimate of 9.3 (95% range 7.3–11). A 5-year backtest shows a typical error of ±22.3%, with 80% of held-out values landing inside the 95% band.

+19%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 →
9.3Projected 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 →
7.3–1195% 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 →
±22.3%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, Red-bellied Woodpecker in Indiana is projected to rise about 19% by 2029 — from 7.8 in 2024 to a central estimate of 9.3 (95% range 7.3–11). A 5-year backtest shows a typical error of ±22.3%, with 80% 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 →
20259.06.911
20269.17.011
20279.17.111
20289.27.211
20299.37.311

Red-bellied Woodpecker Survey Routes in Indiana

Routes recording Red-bellied Woodpecker in Indiana.
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 →
Georgia3220241999
New Phila2720241982
Indian Spgs2520241982
Celestine2220241979
Wallace2120241999
Clear Spring1620241981
Thorntown1520241983
Azalia1520241982
Corydon1520241966
Hoosier1420241990
Belmont1320241982
Scottsburg1320241982
New Castle1320242002
Friendswood1220241986
Spencer1220241967
Packertown1120041967
Jamestown920241986
Washington920241987
Witts Station920242000
Monticello820241981
Wabash820241981
Montpelier820232018
Cyprss820241999
Portage820042000
Lakeville820241993

Red-bellied Woodpecker Population Trend in Other States

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

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