Species · BCR 12 · BBS 2025 Release · 1966–2024

Boreal Chickadee In Boreal Hardwood Transition

Boreal Chickadee in Boreal Hardwood Transition has fallen sharply: down 72% on the route-weighted index since 1973.

-72%Since 1973
27Routes In Region
40Years

Notable Signals

long arc declinecomputed index

Boreal Chickadee has fallen sharply in Boreal Hardwood Transition: down 72% on the route-weighted index since 1973.

Forecast

If the recent trend holds, Boreal Chickadee in Boreal Hardwood Transition is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±45.4%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.03Projected 2029 index
0.000.0995% range
±45.4%Backtest error
19712029
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
20250.030.000.09
20260.030.000.09
20270.030.000.09
20280.030.000.09
20290.030.000.09

Routes In Boreal Hardwood Transition

Routes recording Boreal Chickadee in Boreal Hardwood Transition.
Ned LakeMICHIGAN21987
CunardMICHIGAN21982
TahquamenonMICHIGAN21974
Sawbill CampMINNESOTA22010
BabbittMINNESOTA22022
ShanagoldenWISCONSIN22000
BerglandMICHIGAN11990
Gibbs CityMICHIGAN12017
IshpemingMICHIGAN11984
Brocky LakeMICHIGAN12004
WilsonMICHIGAN12002
IsabellaMICHIGAN11975
RacoMICHIGAN11992
Imp LakeMICHIGAN11999
Pine RiverMICHIGAN12014
CromwellMINNESOTA11996
HovlandMINNESOTA11981
LockportMINNESOTA12018
Sawbill LndgMINNESOTA12024
Hart LakeMINNESOTA12010
Crane LakeMINNESOTA12005
JordanMINNESOTA12022
Red LakeMINNESOTA12012
IrmaWISCONSIN11981
Eagle RiverWISCONSIN11997

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