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Species · South Carolina · BBS 2025 Release · 1966–2024

Red-headed Woodpecker Population Trend in South Carolina

All statesForest birds

Red-headed Woodpecker in South Carolina has edged up: up 21% on the route-weighted index since 1968.

+21%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 →
47Routes 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 South CarolinaNotable 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 South Carolina. See the full index history below.

Red-headed Woodpecker Population Forecast in South Carolina

If the recent trend holds, Red-headed Woodpecker in South Carolina is projected to fall about 40% by 2029 — from 2.6 in 2024 to a central estimate of 1.6 (95% range 0.56–2.6). A 5-year backtest shows a typical error of ±31.4%, with 60% of held-out values landing inside the 95% band.

-40%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 →
1.6Projected 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 →
0.56–2.695% 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 →
±31.4%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 South Carolina is projected to fall about 40% by 2029 — from 2.6 in 2024 to a central estimate of 1.6 (95% range 0.56–2.6). A 5-year backtest shows a typical error of ±31.4%, with 60% 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 →
20251.60.552.6
20261.60.552.6
20271.60.552.6
20281.60.552.6
20291.60.562.6

Red-headed Woodpecker Survey Routes in South Carolina

Routes recording Red-headed Woodpecker in South Carolina.
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 →
Sandhills2320241994
Kingstree820102010
Olar620191999
Mount Pisgah520211998
Red Bluff520241996
Rome420241967
Whitmire420242010
Green Sea420242010
Adams Run420241988
Foreston320211966
Walterboro320171970
Salem Xrd320191988
Ward320212017
Joanna320212003
Nixville320211999
Holly Hill220241972
New Holland220241968
Wagener220231966
Dillon220181971
Boykin Ml Pd219681966
Nixonville219931987
Campobello220242023
Cauthens Xrd220171984
Anderson220151993
Owings 2220152012

Red-headed Woodpecker Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananebraskanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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