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Species · Michigan · BBS 2025 Release · 1966–2024

Palm Warbler Population Trend in Michigan

All statesForest birds

Palm Warbler in Michigan has surged: up 123% on the route-weighted index since 1992.

+123%Since 1992
15Routes In State
29Years

Notable Palm Warbler Trends in Michigan

long arc increasecomputed index

Palm Warbler has surged in Michigan: up 123% on the route-weighted index since 1992.

Palm Warbler Population Forecast in Michigan

If the recent trend holds, Palm Warbler in Michigan is projected to rise about 220% by 2029 — from 0.06 in 2024 to a central estimate of 0.20 (95% range 0.04–0.38). A 5-year backtest shows a typical error of ±78.2%, with 100% of held-out values landing inside the 95% band.

+220%Change by 2029
0.20Projected 2029 index
0.04–0.3895% range
±78.2%Backtest error
19752029
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
20250.190.020.36
20260.200.030.36
20270.200.030.37
20280.200.030.37
20290.200.040.38

Palm Warbler Survey Routes in Michigan

Routes recording Palm Warbler in Michigan.
Pine River420161992
Gibbs City320222022
Hiawatha Nf220242009
Ishpeming220232015
Cunard220152015
Tahquamenon219951994
Ontonagon119751975
Crystal Fls120042004
Brocky Lake120162016
Betchler Lks120231992
Shingleton120242024
Creighton120061992
Seney Nwr120231995
Big Island Lake120092008
Muskallonge119801980

Palm Warbler Population Trend in Other States

maineminnesotanew-yorkwisconsin

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