BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

White-eyed Vireo In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieForest birds

White-eyed Vireo in Eastern Tallgrass Prairie has surged: up 84% on the route-weighted index since 1968.

+84%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 →
151Routes 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 →

White-eyed Vireo has surged in Eastern Tallgrass Prairie: up 84% on the route-weighted index since 1968.

Forecast

If the recent trend holds, White-eyed Vireo in Eastern Tallgrass Prairie is projected to rise about 13% by 2029 — from 0.26 in 2024 to a central estimate of 0.30 (95% range 0.18–0.41). A 5-year backtest shows a typical error of ±25.5%, with 60% of held-out values landing inside the 95% band.

+13%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 →
0.30Projected 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 →
0.18–0.4195% 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 →
±25.5%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, White-eyed Vireo in Eastern Tallgrass Prairie is projected to rise about 13% by 2029 — from 0.26 in 2024 to a central estimate of 0.30 (95% range 0.18–0.41). A 5-year backtest shows a typical error of ±25.5%, with 60% 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 →
20250.280.170.40
20260.290.170.41
20270.290.170.41
20280.290.180.41
20290.300.180.41

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 →
UnionMISSOURI81999
GeraldMISSOURI62024
MoselleMISSOURI62024
BelleviewILLINOIS52024
Mascoutah LkILLINOIS42023
OhioMISSOURI42023
MillwoodMISSOURI42021
FriendswoodINDIANA32024
FilleyMISSOURI32023
TrentonMISSOURI32017
West ElktonOHIO32009
AthensvilleILLINOIS22004
ConcordILLINOIS22023
PawneeILLINOIS22003
Le RoyILLINOIS21998
EldredILLINOIS22021
W LafayetteINDIANA22019
MuncieINDIANA21983
Mt HamillIOWA22023
SenecaKANSAS21979
DanvilleMISSOURI22024
HuntsvilleMISSOURI22024
RockinghamMISSOURI22011
KahokaMISSOURI21986
New PointMISSOURI22011

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