BirdAnalyst
Species · BCR 22 · BBS 2026 Release · 1966–2025

White-eyed Vireo In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieForest birds

White-eyed Vireo in Eastern Tallgrass Prairie has surged: up 89% on the route-weighted index since 1968.

+89%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 →
152Routes 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 →

White-eyed Vireo has surged in Eastern Tallgrass Prairie: up 89% on the route-weighted index since 1968.

White-eyed Vireo In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, White-eyed Vireo in Eastern Tallgrass Prairie is projected to stay roughly flat through 2030, near 0.31 (95% range 0.19–0.42). A 5-year backtest shows a typical error of ±26.8%, with 60% of held-out values landing inside the 95% band.

-9%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 →
0.31Projected 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 →
0.19–0.4295% 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 →
±26.8%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, White-eyed Vireo in Eastern Tallgrass Prairie is projected to stay roughly flat through 2030, near 0.31 (95% range 0.19–0.42). A 5-year backtest shows a typical error of ±26.8%, with 60% 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 →
20260.290.180.41
20270.300.180.41
20280.300.180.42
20290.300.180.42
20300.310.190.42

Routes In Eastern Tallgrass Prairie

Routes recording White-eyed Vireo in Eastern Tallgrass Prairie.
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 →
MoselleMISSOURI152025
UnionMISSOURI81999
BelleviewILLINOIS52025
House SpringsMISSOURI52025
DudleyvilleILLINOIS42025
BrookvilleINDIANA42025
OhioMISSOURI42023
FriendswoodINDIANA32024
HuntsvilleMISSOURI32025
TrentonMISSOURI32017
AuburnMISSOURI32025
GeraldMISSOURI32025
West ElktonOHIO32009
AthensvilleILLINOIS22004
ConcordILLINOIS22023
PawneeILLINOIS22003
Le RoyILLINOIS21998
EldredILLINOIS22025
DarmstadtILLINOIS22025
W LafayetteINDIANA22019
MuncieINDIANA21983
Mt HamillIOWA22023
SenecaKANSAS21979
FilleyMISSOURI22025
DanvilleMISSOURI22025

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