BirdAnalyst
Species · Minnesota · BBS 2025 Release · 1966–2024

Palm Warbler Population Trend in Minnesota

All statesForest birds

Palm Warbler in Minnesota has risen sharply: up 71% on the route-weighted index since 1971.

+71%Since 1971
20Routes In State
46Years

Notable Palm Warbler Trends in Minnesota

long arc increasecomputed index

Palm Warbler has risen sharply in Minnesota: up 71% on the route-weighted index since 1971.

Palm Warbler Population Forecast in Minnesota

If the recent trend holds, Palm Warbler in Minnesota is projected to rise about 95% by 2029 — from 0.09 in 2024 to a central estimate of 0.18 (95% range 0.05–0.30). A 5-year backtest shows a typical error of ±326%, with 40% of held-out values landing inside the 95% band.

+95%Change by 2029
0.18Projected 2029 index
0.05–0.3095% range
±326%Backtest error
19672029
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
20250.170.050.29
20260.170.050.29
20270.170.050.30
20280.170.050.30
20290.180.050.30

Palm Warbler Survey Routes in Minnesota

Routes recording Palm Warbler in Minnesota.
Floodwood320241967
Crane Lake320222010
Cromwell220242001
Mille Lacs219941994
Sawbill Lndg220101984
Sherry Lake220222022
Jordan220221995
Greenbush220162008
Chisholm220232022
Hart Lake120022002
Debs119811981
Little Fork120132004
Lude120131996
Waskish119781978
Nett Lake120142014
Mcgregor120142002
Babbitt120081994
Blackduck120042004
Red Lake120221996
Warroad120071995

Palm Warbler Population Trend in Other States

mainemichigannew-yorkwisconsin

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