BirdAnalyst
Species · BCR 26 · BBS 2025 Release · 1966–2024

Red-eyed Vireo In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyForest birds

Red-eyed Vireo in Mississippi Alluvial Valley has surged: up 140% on the route-weighted index since 1968.

+140%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 →
63Routes In RegionSurvey 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 SignalsNotable 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 Mississippi Alluvial Valley: up 140% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Red-eyed Vireo in Mississippi Alluvial Valley is projected to stay roughly flat through 2029, near 3.6 (95% range 2.4–4.8). A 5-year backtest shows a typical error of ±18.7%, with 100% of held-out values landing inside the 95% band.

-4%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 →
3.6Projected 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 →
2.4–4.895% 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 →
±18.7%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 Mississippi Alluvial Valley is projected to stay roughly flat through 2029, near 3.6 (95% range 2.4–4.8). A 5-year backtest shows a typical error of ±18.7%, 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 →
20253.42.34.6
20263.52.34.6
20273.52.44.7
20283.62.44.7
20293.62.44.8

Routes In Mississippi Alluvial Valley

Routes recording Red-eyed Vireo in Mississippi Alluvial Valley.
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 →
Crowley'S RidgeARKANSAS332024
Warren VickMISSISSIPPI322022
AtchafalayaLOUISIANA292024
Tensas NwrLOUISIANA172024
Delta N.F.MISSISSIPPI172021
RamahLOUISIANA102024
BardwellKENTUCKY62003
Bardwell 2KENTUCKY52024
TchulaMISSISSIPPI51974
Tchula 3MISSISSIPPI52024
DundeeMISSISSIPPI42022
WintervilleMISSISSIPPI42009
Cp GirardeauMISSOURI42024
TiptonvilleTENNESSEE42023
ShawLOUISIANA32024
Eagle LakeMISSISSIPPI32024
MaynardARKANSAS22024
GillettARKANSAS22024
CarlisleLOUISIANA21987
LaroseLOUISIANA21990
GonzalesLOUISIANA22019
FrogmoreLOUISIANA22024
TransylvaniaLOUISIANA22022
KraemerLOUISIANA22024
ConcordLOUISIANA22016

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