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Species · Oklahoma · BBS 2025 Release · 1966–2024

Warbling Vireo Population Trend in Oklahoma

All statesForest birds

Warbling Vireo in Oklahoma has held roughly steady: up 3% on the route-weighted index since 1969.

+3%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 →
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 →
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 Warbling Vireo 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 →

No notable trend signals for Warbling Vireo in Oklahoma. See the full index history below.

Warbling Vireo Population Forecast in Oklahoma

If the recent trend holds, Warbling Vireo in Oklahoma is projected to rise about 56% by 2029 — from 0.24 in 2024 to a central estimate of 0.38 (95% range 0.07–0.68). A 5-year backtest shows a typical error of ±146.8%, with 80% of held-out values landing inside the 95% band.

+56%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 →
0.38Projected 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 →
0.07–0.6895% 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 →
±146.8%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, Warbling Vireo in Oklahoma is projected to rise about 56% by 2029 — from 0.24 in 2024 to a central estimate of 0.38 (95% range 0.07–0.68). A 5-year backtest shows a typical error of ±146.8%, with 80% 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 →
20250.370.070.68
20260.370.070.68
20270.380.070.68
20280.380.070.68
20290.380.070.68

Warbling Vireo Survey Routes in Oklahoma

Routes recording Warbling Vireo 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 →
Canadian420151976
Big Cedar319981981
Peoria319801967
Douglas320181968
Jet320241992
Blanco220161998
Wichita Mtns East220052005
Collinsville220191970
Colony219951995
Pocola220021996
Arapaho219991993
Keetonville220131993
Hunter220172017
Phroso120212006
Phillips120002000
Loco119741974
Ardmore119701970
Randlett120042004
Cookietown119691969
Elgin120132013
Baron120001967
Indianola120241991
Holdenville120141969
Beggs119671967
Choctaw120071971

Warbling Vireo Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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