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Species · Louisiana · BBS 2025 Release · 1966–2024

Red-bellied Woodpecker Population Trend in Louisiana

All statesForest birds

Red-bellied Woodpecker in Louisiana has surged: up 289% on the route-weighted index since 1969.

+289%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 →
95Routes 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 →
57YearsYears 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 LouisianaNotable 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 Louisiana: up 289% on the route-weighted index since 1969.

Red-bellied Woodpecker Population Forecast in Louisiana

If the recent trend holds, Red-bellied Woodpecker in Louisiana is projected to fall about 25% by 2029 — from 24 in 2024 to a central estimate of 18 (95% range 14–22). A 5-year backtest shows a typical error of ±18.2%, with 40% of held-out values landing inside the 95% band.

-25%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 →
18Projected 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 →
14–2295% 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 →
±18.2%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 Louisiana is projected to fall about 25% by 2029 — from 24 in 2024 to a central estimate of 18 (95% range 14–22). A 5-year backtest shows a typical error of ±18.2%, with 40% of held-out values landing inside the 95% band.19672029
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 →
2025171321
2026171321
2027171421
2028181421
2029181422

Red-bellied Woodpecker Survey Routes in Louisiana

Routes recording Red-bellied Woodpecker in Louisiana.
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 →
Ramah7920241988
Atchafalaya6720241989
Tensas Nwr6120241987
Kraemer5420241997
Shaw4920241967
Norwood4420242004
Goodwill3920242004
Bickham3520241984
Franklinton3320242008
Mayflower3220241967
Rayville 23020242009
Plettenberg2920221968
Clay2820241968
Mount Union2820241998
Fishville 22620242018
River Road2620241987
Roseland2520241967
Transylvania2320221998
Floyd2220211988
Derry 22220241990
Fishville2120171967
Flat Creek2020241998
Frogmore1920241998
Greensburg1820221988
Derry1719891967

Red-bellied Woodpecker Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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