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

Baltimore Oriole In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionGeneralists

Baltimore Oriole in Boreal Hardwood Transition has fallen sharply: down 62% on the route-weighted index since 1968.

-62%Since 1968
112Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Baltimore Oriole has fallen sharply in Boreal Hardwood Transition: down 62% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Baltimore Oriole in Boreal Hardwood Transition is projected to fall about 47% by 2029 — from 1.2 in 2024 to a central estimate of 0.63 (95% range 0.00–1.7). A 5-year backtest shows a typical error of ±18.9%, with 100% of held-out values landing inside the 95% band.

-47%Change by 2029
0.63Projected 2029 index
0.00–1.795% range
±18.9%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
20250.830.001.9
20260.780.001.8
20270.730.001.8
20280.680.001.7
20290.630.001.7

Routes In Boreal Hardwood Transition

Routes recording Baltimore Oriole in Boreal Hardwood Transition.
FredericMICHIGAN152001
Traverse CtyMICHIGAN141992
IronsMICHIGAN131989
GilmanWISCONSIN122024
Wigwam BayMINNESOTA102023
Bear LakeMICHIGAN62024
GreenbushMINNESOTA62024
CunardMICHIGAN52021
Pleasant ValMICHIGAN51997
RiggsvilleMICHIGAN52019
HarriettaMICHIGAN52024
Walloon Lake 2MICHIGAN52024
MayfieldMICHIGAN52022
WilsonMICHIGAN42010
Walloon LakeMICHIGAN41993
CathroMICHIGAN42016
Cedar RunMICHIGAN41999
WarroadMINNESOTA42024
CouderayWISCONSIN42019
PhillipsWISCONSIN42024
Rib LakeWISCONSIN42024
AmbergWISCONSIN42018
Ned LakeMICHIGAN32024
BemidjiMINNESOTA31980
LudeMINNESOTA32021

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