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Species · Minnesota · BBS 2025 Release · 1966–2024

Magnolia Warbler Population Trend in Minnesota

All statesForest birds

Magnolia Warbler in Minnesota has surged: up 343% on the route-weighted index since 1969.

+343%Since 1969
31Routes In State
57Years

Notable Magnolia Warbler Trends in Minnesota

long arc increasecomputed index

Magnolia Warbler has surged in Minnesota: up 343% on the route-weighted index since 1969.

Magnolia Warbler Population Forecast in Minnesota

If the recent trend holds, Magnolia Warbler in Minnesota is projected to rise about 49% by 2029 — from 1.6 in 2024 to a central estimate of 2.3 (95% range 1.5–3.2). A 5-year backtest shows a typical error of ±20.8%, with 100% of held-out values landing inside the 95% band.

+49%Change by 2029
2.3Projected 2029 index
1.5–3.295% range
±20.8%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
20252.31.43.1
20262.31.43.1
20272.31.43.2
20282.31.43.2
20292.31.53.2

Magnolia Warbler Survey Routes in Minnesota

Routes recording Magnolia Warbler in Minnesota.
Sawbill Lndg2520241973
Jordan2520231993
Hart Lake1620241967
Sawbill Camp1320241993
Lockport1020241967
Hovland720241974
Sherry Lake520221970
Crane Lake520241969
Cohasset420181973
Chisholm320242022
Cass Lake220041982
Cromwell220241973
Nett Lake220162013
Mcgregor220241993
Babbitt220231994
Bigfork220231993
Blackduck220222014
Glendale220241993
Nebish120161982
Princeton120042004
Mille Lacs119951995
Floodwood120231968
Island Lake119951972
Bemidji119801980
Debs120021987

Magnolia Warbler Population Trend in Other States

connecticutmainemarylandmassachusettsmichigannew-hampshirenew-jerseynew-yorknorth-carolinaohiopennsylvaniavermontvirginiawest-virginiawisconsin

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