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

Chimney Swift Population Trend in Minnesota

All statesAerial insectivores

Chimney Swift in Minnesota has fallen sharply: down 71% on the route-weighted index since 1969.

-71%Since 1969
75Routes In State
57Years

Notable Chimney Swift Trends in Minnesota

long arc declinecomputed index

Chimney Swift has fallen sharply in Minnesota: down 71% on the route-weighted index since 1969.

Chimney Swift Population Forecast in Minnesota

If the recent trend holds, Chimney Swift in Minnesota is projected to fall about 50% by 2029 — from 0.87 in 2024 to a central estimate of 0.43 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±34.9%, with 100% of held-out values landing inside the 95% band.

-50%Change by 2029
0.43Projected 2029 index
0.00–1.195% range
±34.9%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
20250.570.001.3
20260.530.001.2
20270.500.001.2
20280.470.001.2
20290.430.001.1

Chimney Swift Survey Routes in Minnesota

Routes recording Chimney Swift in Minnesota.
Courtland1220241978
Caledonia 2920212018
Osseo720241967
Whitewater720001995
New London620181994
Ash Creek520241975
Minnetonka520241969
Arlington520221967
St Stephen520081967
Cass Lake520121981
Brook Park520212004
Knapp420241967
Badger420152015
Chatfield 2420232003
Money Creek320241967
Chandler320231971
Lakeville320111968
Wigwam Bay320181968
Edwards320241973
Evergreen320241967
Bena319671967
Bemidji319681967
Debs320161969
Beltrami320071974
Chokio North320131993

Chimney Swift Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganmississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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