BirdAnalyst
Species · South Carolina · BBS 2026 Release · 1966–2025

Downy Woodpecker Population Trend in South Carolina

All statesForest birds

Downy Woodpecker in South Carolina has increased: up 36% on the route-weighted index since 1968.

+36%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 →
50Routes 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 Downy 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 Downy Woodpecker in South Carolina. See the full index history below.

Downy Woodpecker Population Forecast in South Carolina

If the recent trend holds, Downy Woodpecker in South Carolina is projected to stay roughly flat through 2030, near 3.5 (95% range 1.3–5.7). A 5-year backtest shows a typical error of ±13%, with 100% of held-out values landing inside the 95% band.

+10%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 →
3.5Projected 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 →
1.3–5.795% 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 →
±13%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, Downy Woodpecker in South Carolina is projected to stay roughly flat through 2030, near 3.5 (95% range 1.3–5.7). A 5-year backtest shows a typical error of ±13%, with 100% 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 →
20263.51.35.7
20273.51.35.7
20283.51.35.7
20293.51.35.7
20303.51.35.7

Downy Woodpecker Survey Routes in South Carolina

Routes recording Downy 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 →
Little Mtn1119881967
Coward1020251966
New Holland1020251967
Owings820041992
Prosperity720241992
Owings 2720252005
Dillon620191971
New Ellenton620252010
Carvers Bay620121998
Salem Xrd520191982
Whitmire520242010
Ridgeway520252010
Jamestown420191967
Foreston420211966
Greenwood420251998
Dale420251998
Kiawah Island420251998
Adams Run420251988
Anderson420181977
Holly Hill320251972
Plum Branch320251977
Ward320252017
Campobello320242010
Salem320252010
Sandhills320251994

Downy Woodpecker Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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