BirdAnalyst
Species · BCR 27 · BBS 2025 Release · 1966–2024

Red-eyed Vireo In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainForest birds

Red-eyed Vireo in Southeastern Coastal Plain has risen sharply: up 52% on the route-weighted index since 1968.

+52%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 →
343Routes 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 risen sharply in Southeastern Coastal Plain: up 52% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Red-eyed Vireo in Southeastern Coastal Plain is projected to stay roughly flat through 2029, near 7.4 (95% range 6.2–8.6). A 5-year backtest shows a typical error of ±4.3%, with 100% of held-out values landing inside the 95% band.

+6%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 →
7.4Projected 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 →
6.2–8.695% 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 →
±4.3%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 Southeastern Coastal Plain is projected to stay roughly flat through 2029, near 7.4 (95% range 6.2–8.6). A 5-year backtest shows a typical error of ±4.3%, 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 →
20257.26.08.4
20267.36.18.4
20277.36.18.5
20287.46.28.5
20297.46.28.6

Routes In Southeastern Coastal Plain

Routes recording Red-eyed Vireo in Southeastern Coastal Plain.
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 →
Trace ChoctawMISSISSIPPI702019
Oak Ridge VickMISSISSIPPI532021
Sprott-Cahaba RivALABAMA462014
Trace HindsMISSISSIPPI442022
Holly SpringsMISSISSIPPI432024
SurryVIRGINIA432024
Gainestown FerryALABAMA422015
Warrior StdALABAMA412024
JacksonNORTH-CAROLINA402017
BranchvilleVIRGINIA392024
Trace AttalaMISSISSIPPI372019
NewsomsVIRGINIA372024
Trace CentralMISSISSIPPI362022
CaliforniaNORTH-CAROLINA362013
Trace LormanMISSISSIPPI352019
RheasvilleNORTH-CAROLINA352017
Big SandyTENNESSEE352024
NewvilleVIRGINIA332024
Grenada LakeMISSISSIPPI322019
Trace ChickasawMISSISSIPPI322024
EmbryMISSISSIPPI302024
WaverlyVIRGINIA301987
Cross CityFLORIDA292023
Trace NorthMISSISSIPPI292018
HoltALABAMA282024

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