BirdAnalyst
Species · BCR 14 · BBS 2025 Release · 1966–2024

Red-eyed Vireo In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Red-eyed Vireo in Atlantic Northern Forest has surged: up 116% on the route-weighted index since 1968.

+116%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 →
156Routes 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 Atlantic Northern Forest: up 116% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Red-eyed Vireo in Atlantic Northern Forest is projected to stay roughly flat through 2029, near 48 (95% range 38–58). A 5-year backtest shows a typical error of ±7.2%, 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 →
48Projected 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 →
38–5895% 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 →
±7.2%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 Atlantic Northern Forest is projected to stay roughly flat through 2029, near 48 (95% range 38–58). A 5-year backtest shows a typical error of ±7.2%, 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 →
2025473757
2026473757
2027473758
2028483758
2029483858

Routes In Atlantic Northern Forest

Routes recording Red-eyed Vireo in Atlantic Northern Forest.
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 →
ChesterfieldMASSACHUSETTS1382024
NorthfieldMAINE1241981
InletNEW-YORK1232017
PittsfieldMASSACHUSETTS972016
StrattonVERMONT972024
MontereyMASSACHUSETTS952024
N OrangeMASSACHUSETTS882024
StoweVERMONT872024
Old ForgeNEW-YORK782006
SabattisNEW-YORK781983
Mt ChocoruaNEW-HAMPSHIRE762024
East HavenVERMONT762024
Old Forge 2NEW-YORK752019
HardwickVERMONT752024
LudlowMAINE741998
GlenNEW-HAMPSHIRE742024
MarlboroVERMONT712024
Otisfield GrMAINE702015
Hope FallsNEW-YORK701995
EastbrookMAINE682024
CanterburyNEW-HAMPSHIRE682024
Tupper LakeNEW-YORK681976
CooperMAINE672021
LandgroveVERMONT672024
WaiteMAINE661977

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