BirdAnalyst
Species · BCR 26 · BBS 2026 Release · 1966–2025

Red-eyed Vireo In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyForest birds

Red-eyed Vireo in Mississippi Alluvial Valley has surged: up 123% on the route-weighted index since 1968.

+123%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 →
59YearsYears 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 123% on the route-weighted index since 1968.

Red-eyed Vireo In Mississippi Alluvial Valley Population Forecast

If the recent trend holds, Red-eyed Vireo in Mississippi Alluvial Valley is projected to rise about 11% by 2030 — from 3.3 in 2025 to a central estimate of 3.6 (95% range 2.5–4.8). A 5-year backtest shows a typical error of ±15.6%, with 100% of held-out values landing inside the 95% band.

+11%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 →
3.6Projected 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 →
2.5–4.895% 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 →
±15.6%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 rise about 11% by 2030 — from 3.3 in 2025 to a central estimate of 3.6 (95% range 2.5–4.8). A 5-year backtest shows a typical error of ±15.6%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20263.52.34.6
20273.52.34.6
20283.52.44.7
20293.62.44.7
20303.62.54.8

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 →
AtchafalayaLOUISIANA402025
Warren VickMISSISSIPPI322022
Tensas NwrLOUISIANA202025
Crowley'S RidgeARKANSAS182025
Delta N.F.MISSISSIPPI172021
RamahLOUISIANA102025
BardwellKENTUCKY62003
TchulaMISSISSIPPI51974
FrogmoreLOUISIANA42025
TransylvaniaLOUISIANA42025
DundeeMISSISSIPPI42022
WintervilleMISSISSIPPI42009
Bardwell 2KENTUCKY32025
ShawLOUISIANA32024
Cp GirardeauMISSOURI32025
EudoraARKANSAS22025
MaynardARKANSAS22024
GillettARKANSAS22025
CarlisleLOUISIANA21987
LaroseLOUISIANA21990
GonzalesLOUISIANA22019
KraemerLOUISIANA22024
ConcordLOUISIANA22016
CommerceMISSISSIPPI21993
TippoMISSISSIPPI22025

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