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Species · Arkansas · BBS 2025 Release · 1966–2024

Warbling Vireo Population Trend in Arkansas

All statesForest birds

Warbling Vireo in Arkansas has surged: up 193% on the route-weighted index since 1969.

+193%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 →
29Routes 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 →
53YearsYears 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 ArkansasNotable 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 →

Warbling Vireo has surged in Arkansas: up 193% on the route-weighted index since 1969.

Warbling Vireo Population Forecast in Arkansas

If the recent trend holds, Warbling Vireo in Arkansas is projected to fall about 16% by 2029 — from 0.50 in 2024 to a central estimate of 0.42 (95% range 0.04–0.80). A 5-year backtest shows a typical error of ±59.2%, with 40% 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 →
0.42Projected 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 →
0.04–0.8095% 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 →
±59.2%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, Warbling Vireo in Arkansas is projected to fall about 16% by 2029 — from 0.50 in 2024 to a central estimate of 0.42 (95% range 0.04–0.80). A 5-year backtest shows a typical error of ±59.2%, 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 →
20250.400.020.78
20260.400.020.79
20270.410.030.79
20280.410.030.80
20290.420.040.80

Warbling Vireo Survey Routes in Arkansas

Routes recording Warbling Vireo in Arkansas.
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 →
Centerton1020242010
South Bend720231967
Ramsey419871971
Hughes420231967
Gillett420102010
Ozark Nf320232013
Ulm319901987
Hatfield 2220232017
Saffell220101978
Sims220232010
Kelso220112011
Wilson220162012
Locust Bayou120231994
Stamps119791974
Boston Mtn.120242019
Crowley'S Ridge120242011
Crows119721969
Poyen120072007
Blakely119721970
Harrisburg119671967
Rupert120061984
Coal Hill120091968
Massard120061973
Maynard120011994
Fulton119861986

Warbling Vireo Population Trend in Other States

alabamaalaskaarizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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