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Species · Oklahoma · BBS 2026 Release · 1966–2025

Red-bellied Woodpecker Population Trend in Oklahoma

All statesForest birds

Red-bellied Woodpecker in Oklahoma has risen sharply: up 55% on the route-weighted index since 1969.

+55%Since 1969TrendPercent 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 →
66Routes 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-bellied Woodpecker Trends in OklahomaNotable 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 risen sharply in Oklahoma: up 55% on the route-weighted index since 1969.

Red-bellied Woodpecker Population Forecast in Oklahoma

If the recent trend holds, Red-bellied Woodpecker in Oklahoma is projected to stay roughly flat through 2030, near 7.0 (95% range 5.1–9.0). A 5-year backtest shows a typical error of ±44.1%, with 60% of held-out values landing inside the 95% band.

+9%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 →
7.0Projected 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 →
5.1–9.095% 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 →
±44.1%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 Oklahoma is projected to stay roughly flat through 2030, near 7.0 (95% range 5.1–9.0). A 5-year backtest shows a typical error of ±44.1%, with 60% of held-out values landing inside the 95% band.19672030
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 →
20266.84.98.8
20276.94.98.8
20286.95.08.9
20297.05.08.9
20307.05.19.0

Red-bellied Woodpecker Survey Routes in Oklahoma

Routes recording Red-bellied Woodpecker in Oklahoma.
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 →
Sandbluff2420251992
Ardmore1720251967
Phillips1620251970
Ft Sill West1519941994
Goodwater1420211992
Pocola1420161992
Baron1320231967
Erick1320241969
Heyburn1320251992
Colcord1320221992
Verden1220171967
Mill Creek1120251967
Loco1019851967
Beggs1020231967
Matoy1020251992
Ft Sill East1019941994
Duncan1020251986
Blanco920161967
Noble920251967
Wainwright920131992
Wichita Mtns919941994
Holdenville820251967
Choctaw820231967
Peoria820231967
Cashion820241992

Red-bellied Woodpecker Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiopennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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