BirdAnalyst
Species · Indiana · BBS 2025 Release · 1966–2024

Red-eyed Vireo Population Trend in Indiana

All statesForest birds

Red-eyed Vireo in Indiana has surged: up 144% on the route-weighted index since 1968.

+144%Since 1968TrendPercent 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 →
67Routes 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 IndianaNotable 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 Indiana: up 144% on the route-weighted index since 1968.

Red-eyed Vireo Population Forecast in Indiana

If the recent trend holds, Red-eyed Vireo in Indiana is projected to rise about 17% by 2029 — from 6.5 in 2024 to a central estimate of 7.5 (95% range 4.2–11). A 5-year backtest shows a typical error of ±14.5%, with 100% of held-out values landing inside the 95% band.

+17%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 →
7.5Projected 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 →
4.2–1195% 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 →
±14.5%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 Indiana is projected to rise about 17% by 2029 — from 6.5 in 2024 to a central estimate of 7.5 (95% range 4.2–11). A 5-year backtest shows a typical error of ±14.5%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20257.34.011
20267.34.011
20277.44.111
20287.54.111
20297.54.211

Red-eyed Vireo Survey Routes in Indiana

Routes recording Red-eyed Vireo in Indiana.
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 →
Belmont7820241981
Hoosier6920241990
Georgia3020241999
Indian Spgs1820241982
Clear Spring1820241981
New Phila1720241982
Corydon1420241966
Celestine1320241979
Cross Plains1320241999
Wallace1120241999
Cumback1020211966
Pimento920241981
New Castle620242016
Packertown520041967
Brookville520241966
Indiana Dune520241993
Fowler420211968
Spencer420241967
Vevay420241966
Frankfort420222000
Decatur420192000
Witts Station420242000
Galveston320241981
Azalia320241982
Millersburg320241981

Red-eyed Vireo Population Trend in Other States

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

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