Species · BCR 30 · BBS 2025 Release · 1966–2024

Carolina Chickadee In New England / Mid-Atlantic Coast

Carolina Chickadee in New England / Mid-Atlantic Coast has risen sharply: up 64% on the route-weighted index since 1968.

+64%Since 1968
101Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Carolina Chickadee has risen sharply in New England / Mid-Atlantic Coast: up 64% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Carolina Chickadee in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2029, near 6.4 (95% range 4.3–8.5). A 5-year backtest shows a typical error of ±19.5%, with 80% of held-out values landing inside the 95% band.

-5%Change by 2029
6.4Projected 2029 index
4.38.595% range
±19.5%Backtest error
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 index95% low95% high
20256.24.18.3
20266.24.18.3
20276.34.28.4
20286.34.28.4
20296.44.38.5

Routes In New England / Mid-Atlantic Coast

Routes recording Carolina Chickadee in New England / Mid-Atlantic Coast.
Island CreekMARYLAND322024
LargoMARYLAND311981
La PlataMARYLAND282009
Cape May ChNEW-JERSEY282013
Forest GroveMARYLAND272023
St. George'S IslandMARYLAND272017
CokesburyMARYLAND262024
NewarkMARYLAND242024
WinslowNEW-JERSEY242024
MillsboroDELAWARE232024
Tall TimbersMARYLAND232014
Pr FrederickMARYLAND232024
Toms RiverNEW-JERSEY232024
MillingtonMARYLAND202024
Spraguetown 3NEW-JERSEY202024
PepperboxDELAWARE192016
DavidsnvilleMARYLAND192024
PomonaNEW-JERSEY192024
MadisonMARYLAND172024
VillasNEW-JERSEY171981
Lowes XrdsDELAWARE151991
Pepperbox 2DELAWARE152024
WalnutMARYLAND152024
EastonMARYLAND142021
HongaMARYLAND142024

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