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Species · Minnesota · BBS 2025 Release · 1966–2024

Black-and-white Warbler Population Trend in Minnesota

All statesForest birds

Black-and-white Warbler in Minnesota has surged: up 530% on the route-weighted index since 1969.

+530%Since 1969
51Routes In State
57Years

Notable Black-and-white Warbler Trends in Minnesota

long arc increasecomputed index

Black-and-white Warbler has surged in Minnesota: up 529% on the route-weighted index since 1969.

Black-and-white Warbler Population Forecast in Minnesota

If the recent trend holds, Black-and-white Warbler in Minnesota is projected to stay roughly flat through 2029, near 4.3 (95% range 3.2–5.4). A 5-year backtest shows a typical error of ±16.6%, with 80% of held-out values landing inside the 95% band.

-2%Change by 2029
4.3Projected 2029 index
3.2–5.495% range
±16.6%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
20254.13.05.2
20264.13.05.2
20274.23.15.3
20284.33.25.4
20294.33.25.4

Black-and-white Warbler Survey Routes in Minnesota

Routes recording Black-and-white Warbler in Minnesota.
Debs2420241970
Jordan2320231993
Nebish2120231982
Bigfork2120241993
Chisholm2020242019
Crane Lake1920241969
Glendale1820241993
Sherry Lake1720221969
Nett Lake1720242013
Mahtowa1520231993
Tamarac Nwr1420241992
Little Fork1420241969
Hart Lake1320241967
Blackduck1320222004
Cass Lake1120161980
Lockport1120241967
Waskish1020241978
Sawbill Lndg920241973
Cohasset920221973
Red Lake820241993
Brainerd720241993
Wigwam Bay620231971
Floodwood620241968
Island Lake620171967
Babbitt620231994

Black-and-white Warbler Population Trend in Other States

alabamaarkansascaliforniaconnecticutdelawaregeorgiaillinoisindianakansaskentuckylouisianamainemarylandmassachusettsmichiganmississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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