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

Boreal Chickadee In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Boreal Chickadee in Atlantic Northern Forest has collapsed: down 90% on the route-weighted index since 1968.

-90%Since 1968
52Routes In Region
51Years

Notable Signals

long arc declinecomputed index

Boreal Chickadee has collapsed in Atlantic Northern Forest: down 90% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Boreal Chickadee in Atlantic Northern Forest is projected to stay roughly flat through 2027, near 0.09 (95% range 0.00–0.29). A 5-year backtest shows a typical error of ±579.9%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.09Projected 2027 index
0.00–0.2995% range
±579.9%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
20230.100.000.29
20240.100.000.29
20250.090.000.29
20260.090.000.29
20270.090.000.29

Routes In Atlantic Northern Forest

Routes recording Boreal Chickadee in Atlantic Northern Forest.
Pillsbury PdMAINE141968
WaiteMAINE51977
WytopitlockMAINE41979
Clayton LakeMAINE42001
Big TwentyMAINE32007
YankeetuladiMAINE32009
Big Twenty 2MAINE32009
Baker Lake 2MAINE32010
InletNEW-YORK32011
Newbury 2VERMONT32015
CooperMAINE21997
Seboomook LkMAINE22010
CambridgeMAINE21972
Grnd Lk StrmMAINE21990
LudlowMAINE21993
Weeks BrookMAINE22015
Northfield 2MAINE22021
Heron LakeMAINE22003
Lake MoxieMAINE22009
Crawford NotNEW-HAMPSHIRE21972
NewcombNEW-YORK22004
Horseshoe L.NEW-YORK21996
Wilson MillsMAINE12019
BethelMAINE12008
EastbrookMAINE11986

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