BirdAnalyst
Species · BCR 29 · BBS 2025 Release · 1966–2024

Red-bellied Woodpecker In Piedmont

All regionsPiedmontForest birds

Red-bellied Woodpecker in Piedmont has surged: up 106% on the route-weighted index since 1968.

+106%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 →
170Routes In RegionSurvey 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 SignalsNotable 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 Piedmont: up 106% on the route-weighted index since 1968.

Red-bellied Woodpecker In Piedmont Population Forecast

If the recent trend holds, Red-bellied Woodpecker in Piedmont is projected to rise about 16% by 2029 — from 13 in 2024 to a central estimate of 15 (95% range 13–16). A 5-year backtest shows a typical error of ±12.5%, with 60% of held-out values landing inside the 95% band.

+16%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 →
15Projected 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 →
13–1695% 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 →
±12.5%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 Piedmont is projected to rise about 16% by 2029 — from 13 in 2024 to a central estimate of 15 (95% range 13–16). A 5-year backtest shows a typical error of ±12.5%, 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 →
2025141216
2026141216
2027141316
2028151316
2029151316

Routes In Piedmont

Routes recording Red-bellied Woodpecker in Piedmont.
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 →
IjamsvilleMARYLAND502024
EmmitsburgMARYLAND442024
OlneyMARYLAND362024
EkloMARYLAND292018
MadonnaMARYLAND292022
Pleasant ValMARYLAND262024
ChesneeSOUTH-CAROLINA252015
OakboroNORTH-CAROLINA232024
DurhamNORTH-CAROLINA222024
FairviewNORTH-CAROLINA222024
HollonvilleGEORGIA212003
WheatonMARYLAND212024
SheffieldNORTH-CAROLINA212024
RolandGEORGIA202024
Stoney PointGEORGIA202007
Bachman MillMARYLAND202024
Van BibberMARYLAND202013
MillervilleALABAMA192024
MaxeysGEORGIA192024
FairplayGEORGIA191991
Lincolnton 2GEORGIA192024
GuptonNORTH-CAROLINA192024
DavidVIRGINIA192013
CallNORTH-CAROLINA182024
ChathamPENNSYLVANIA182024

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