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Species · Oklahoma · BBS 2025 Release · 1966–2024

Louisiana Waterthrush Population Trend in Oklahoma

All statesForest birds

Louisiana Waterthrush in Oklahoma has risen sharply: up 63% on the route-weighted index since 1969.

+63%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 →
34Routes 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 Louisiana Waterthrush 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 →

Louisiana Waterthrush has risen sharply in Oklahoma: up 63% on the route-weighted index since 1969.

Louisiana Waterthrush Population Forecast in Oklahoma

If the recent trend holds, Louisiana Waterthrush in Oklahoma is projected to rise about 13% by 2029 — from 0.24 in 2024 to a central estimate of 0.27 (95% range 0.14–0.40). A 5-year backtest shows a typical error of ±19.9%, with 100% of held-out values landing inside the 95% band.

+13%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 →
0.27Projected 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 →
0.14–0.4095% 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 →
±19.9%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, Louisiana Waterthrush in Oklahoma is projected to rise about 13% by 2029 — from 0.24 in 2024 to a central estimate of 0.27 (95% range 0.14–0.40). A 5-year backtest shows a typical error of ±19.9%, with 100% 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 →
20250.260.130.39
20260.260.140.39
20270.270.140.40
20280.270.140.40
20290.270.140.40

Louisiana Waterthrush Survey Routes in Oklahoma

Routes recording Louisiana Waterthrush 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 →
Mt. Herman320212002
Big Cedar220241967
Blanco220161967
Canadian219871976
Noble220181977
Bethel220241993
Cooperton220132013
Heyburn220242024
Sickles220211997
Mcalester119701970
Phillips119981996
Mill Creek119971993
Phroso120242003
Ouachita Nf120222005
Wichita Mtns East120132008
Hee Mountain120232001
Baron120181967
Wichita Mts West120132008
Holdenville120231984
Beggs119971997
Choctaw120071996
Verden119951988
Eagle City120082008
Peoria120142014
Welch119941994

Louisiana Waterthrush Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiopennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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