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

Tennessee Warbler In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Tennessee Warbler in Atlantic Northern Forest has fallen sharply: down 63% on the route-weighted index since 1968.

-63%Since 1968
84Routes In Region
52Years

Notable Signals

long arc declinecomputed index

Tennessee Warbler has fallen sharply in Atlantic Northern Forest: down 63% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Tennessee Warbler in Atlantic Northern Forest is projected to stay roughly flat through 2027, near 0.01 (95% range 0.00–0.41). A 5-year backtest shows a typical error of ±135.8%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.01Projected 2027 index
0.00–0.4195% range
±135.8%Backtest error
19662027
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20230.030.000.43
20240.030.000.43
20250.020.000.42
20260.020.000.41
20270.010.000.41

Routes In Atlantic Northern Forest

Routes recording Tennessee Warbler in Atlantic Northern Forest.
NorthfieldMAINE181981
WinnMAINE91997
BaxterMAINE71984
Seboomook LkMAINE71993
WaiteMAINE61977
Clayton Lake 2MAINE42011
Clayton LakeMAINE32008
WashburnMAINE31993
TopsfieldMAINE31992
St JohnsburyVERMONT32005
Otisfield GrMAINE21976
ManchesterMAINE21974
BentonMAINE21977
Carrying PlMAINE21993
CambridgeMAINE21983
BoundaryMAINE22004
Ft FairfieldMAINE21998
St DavidMAINE21992
Weeks BrookMAINE22015
Baker LakeMAINE22004
Heron LakeMAINE21999
MilanNEW-HAMPSHIRE22019
GlenNEW-HAMPSHIRE21994
GabrielsNEW-YORK21999
Horseshoe L.NEW-YORK22017

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