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Species · Indiana · BBS 2026 Release · 1966–2025

Red-headed Woodpecker Population Trend in Indiana

All statesForest birds

Red-headed Woodpecker in Indiana has declined: down 35% on the route-weighted index since 1968.

-35%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 →
67Routes 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 →
59YearsYears 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-headed 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 →

No notable trend signals for Red-headed Woodpecker in Indiana. See the full index history below.

Red-headed Woodpecker Population Forecast in Indiana

If the recent trend holds, Red-headed Woodpecker in Indiana is projected to fall about 68% by 2030 — from 4.4 in 2025 to a central estimate of 1.4 (95% range 0.00–3.2). A 5-year backtest shows a typical error of ±66.7%, with 0% of held-out values landing inside the 95% band.

-68%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 →
1.4Projected 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 →
0.00–3.295% 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 →
±66.7%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-headed Woodpecker in Indiana is projected to fall about 68% by 2030 — from 4.4 in 2025 to a central estimate of 1.4 (95% range 0.00–3.2). A 5-year backtest shows a typical error of ±66.7%, with 0% of held-out values landing inside the 95% band.19662030
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 →
20261.60.003.4
20271.60.003.3
20281.50.003.3
20291.50.003.2
20301.40.003.2

Red-headed Woodpecker Survey Routes in Indiana

Routes recording Red-headed 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 →
Newberry2420251999
Decatur1720252002
Indian Spgs1520251982
Wallace1520241999
Jamestown1420251986
Pimento1120251981
Brookville1020251966
Brazil920251966
Azalia820251982
Spencer720241967
Cumback720251966
Celestine720251980
Clear Spring720251981
Scottsburg620251982
Knox520251981
Middlebury520251992
Thorntown520251982
Friendswood520241986
New Phila520251982
Frankfort520251999
Kankakee Sands520252000
Maplewood520212000
Washington420251987
Millersburg420191981
New Brunswick420252024

Red-headed Woodpecker Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananebraskanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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