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

Yellow-throated Vireo In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Yellow-throated Vireo in Atlantic Northern Forest has edged up: up 16% on the route-weighted index since 1968.

+16%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 →
71Routes 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 →

No notable trend signals for Yellow-throated Vireo in Atlantic Northern Forest. See the full index history below.

Forecast

If the recent trend holds, Yellow-throated Vireo in Atlantic Northern Forest is projected to fall about 44% by 2029 — from 0.24 in 2024 to a central estimate of 0.14 (95% range 0.00–0.28). A 5-year backtest shows a typical error of ±38%, with 100% of held-out values landing inside the 95% band.

-44%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 →
0.14Projected 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 →
0.00–0.2895% 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 →
±38%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, Yellow-throated Vireo in Atlantic Northern Forest is projected to fall about 44% by 2029 — from 0.24 in 2024 to a central estimate of 0.14 (95% range 0.00–0.28). A 5-year backtest shows a typical error of ±38%, 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 →
20250.140.000.29
20260.140.000.29
20270.140.000.29
20280.140.000.28
20290.140.000.28

Routes In Atlantic Northern Forest

Routes recording Yellow-throated 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 →
W RutlandVERMONT42024
SheffieldMASSACHUSETTS32022
MontereyMASSACHUSETTS32024
GlenNEW-HAMPSHIRE32005
New HartfordCONNECTICUT21987
BiddefordMAINE22001
HarmonyMAINE21999
CummingtonMASSACHUSETTS21986
HancockMASSACHUSETTS22015
FitzwilliamNEW-HAMPSHIRE21984
HopkintonNEW-HAMPSHIRE22017
New HartfordCONNECTICUT12024
South ArmMAINE11998
Otisfield GrMAINE12007
HartfordMAINE12008
Bowdoin CtrMAINE12010
BrooksMAINE11993
HancockMAINE11997
CastineMAINE11977
Seboomook LkMAINE11981
WinnMAINE11999
Forest StaMAINE11985
RomeMAINE11997
N OrangeMASSACHUSETTS12018
ChesterfieldMASSACHUSETTS12024

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