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

Red-headed Woodpecker Population Trend in Indiana

All statesForest birds

Red-headed Woodpecker in Indiana has declined: down 44% on the route-weighted index since 1968.

-44%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 →
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-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 63% by 2029 — from 3.4 in 2024 to a central estimate of 1.2 (95% range 0.00–2.9). A 5-year backtest shows a typical error of ±62.4%, with 20% of held-out values landing inside the 95% band.

-63%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 →
1.2Projected 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 →
0.00–2.995% 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 →
±62.4%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 63% by 2029 — from 3.4 in 2024 to a central estimate of 1.2 (95% range 0.00–2.9). A 5-year backtest shows a typical error of ±62.4%, with 20% 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 →
20251.50.003.1
20261.40.003.0
20271.40.003.0
20281.30.002.9
20291.20.002.9

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 →
Jamestown1620241986
Wallace1520241999
Decatur1320242002
Newberry1220241999
Indian Spgs920241982
Frankfort920221999
Pimento820241981
Brazil820241966
Georgia820241999
Knox720241981
Spencer720241967
Monticello520241981
Friendswood520241986
Washington520241987
Cumback520041966
Maplewood520212000
Galveston420241981
Millersburg420191981
New Phila420241982
South Bend319891966
Kewanna320221981
Columbia Cty320231981
Thorntown320231982
Tipton319911966
Azalia320241982

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 2026-05-22.