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Species · Missouri · BBS 2026 Release · 1966–2025

Red-eyed Vireo Population Trend in Missouri

All statesForest birds

Red-eyed Vireo in Missouri has surged: up 235% on the route-weighted index since 1969.

+235%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 →
91Routes 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-eyed Vireo Trends in MissouriNotable 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-eyed Vireo has surged in Missouri: up 235% on the route-weighted index since 1969.

Red-eyed Vireo Population Forecast in Missouri

If the recent trend holds, Red-eyed Vireo in Missouri is projected to rise about 54% by 2030 — from 8.2 in 2025 to a central estimate of 13 (95% range 8.9–16). A 5-year backtest shows a typical error of ±40%, with 60% of held-out values landing inside the 95% band.

+54%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 →
13Projected 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 →
8.9–1695% 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 →
±40%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-eyed Vireo in Missouri is projected to rise about 54% by 2030 — from 8.2 in 2025 to a central estimate of 13 (95% range 8.9–16). A 5-year backtest shows a typical error of ±40%, 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 →
2026128.216
2027128.416
2028128.516
2029128.716
2030138.916

Red-eyed Vireo Survey Routes in Missouri

Routes recording Red-eyed Vireo in Missouri.
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 →
Centerville10520251994
Bennett4520251994
Cascade3920251967
Wesco3420251972
Hilda3220251994
Williamsvill3020251994
Akers2820251967
Viburnum2320242014
Graniteville2120251982
Mincy1920252013
Palace1920252013
Clementine 21720072005
Ironton1619801972
Rueter1620222018
Barks1420251994
Syracuse1220241969
Rueter 21220252023
Doe Run1120252015
Bland1020251998
Lincoln1020252013
Sweden920251969
Hayden920251975
Osage Beach820251997
New Point820251994
Crane720251994

Red-eyed Vireo Population Trend in Other States

alabamaalaskaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming

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