BirdAnalyst
Species · BCR 30 · BBS 2026 Release · 1966–2025

Wood Thrush In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastForest birds

Wood Thrush in New England / Mid-Atlantic Coast has fallen sharply: down 63% on the route-weighted index since 1968.

-63%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 →
160Routes 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 declinecomputed 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 →

Wood Thrush has fallen sharply in New England / Mid-Atlantic Coast: down 63% on the route-weighted index since 1968.

Wood Thrush In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, Wood Thrush in New England / Mid-Atlantic Coast is projected to fall about 48% by 2030 — from 6.2 in 2025 to a central estimate of 3.2 (95% range 0.23–6.2). A 5-year backtest shows a typical error of ±15%, with 100% of held-out values landing inside the 95% band.

-48%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 →
3.2Projected 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 →
0.23–6.295% 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 →
±15%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, Wood Thrush in New England / Mid-Atlantic Coast is projected to fall about 48% by 2030 — from 6.2 in 2025 to a central estimate of 3.2 (95% range 0.23–6.2). A 5-year backtest shows a typical error of ±15%, with 100% 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 →
20264.11.17.1
20273.90.926.9
20283.70.696.7
20293.40.466.4
20303.20.236.2

Routes In New England / Mid-Atlantic Coast

Routes recording Wood Thrush in New England / Mid-Atlantic Coast.
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 →
WarrenCONNECTICUT442011
Snow HillMARYLAND301976
SinepuxentMARYLAND291978
Grove NeckMARYLAND281996
La PlataMARYLAND272009
Island CreekMARYLAND252025
LargoMARYLAND221981
Fair HillMARYLAND221996
UncasvilleCONNECTICUT212025
PomfretMARYLAND212024
CheltenhamMARYLAND202004
Colonial PkyVIRGINIA201998
WoodstockCONNECTICUT172007
Pt RepublicMARYLAND171989
BrentwoodNEW-HAMPSHIRE161998
No WoodburyCONNECTICUT152025
Woodstock 2CONNECTICUT152025
Lowes XrdsDELAWARE151991
PrincetonMASSACHUSETTS151976
BlackbirdDELAWARE142025
MillingtonMARYLAND142025
Port RoyalVIRGINIA142025
E HartlandCONNECTICUT131992
Mid HaddamCONNECTICUT132025
GranbyCONNECTICUT132025

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