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

Barred Owl Population Trend in Wisconsin

All statesGeneralists

Barred Owl in Wisconsin has surged: up 411% on the route-weighted index since 1968.

+411%Since 1968
82Routes In State
58Years

Notable Barred Owl Trends in Wisconsin

long arc increasecomputed index

Barred Owl has surged in Wisconsin: up 411% on the route-weighted index since 1968.

Barred Owl Population Forecast in Wisconsin

If the recent trend holds, Barred Owl in Wisconsin is projected to fall about 16% by 2029 — from 0.21 in 2024 to a central estimate of 0.18 (95% range 0.03–0.32). A 5-year backtest shows a typical error of ±21%, with 100% of held-out values landing inside the 95% band.

-16%Change by 2029
0.18Projected 2029 index
0.03–0.3295% range
±21%Backtest error
19662029
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
20250.170.030.32
20260.170.030.32
20270.180.030.32
20280.180.030.32
20290.180.030.32

Barred Owl Survey Routes in Wisconsin

Routes recording Barred Owl in Wisconsin.
Loraine320211967
Mcnaughton320231980
Flambeau320162008
Bayfield220241973
Irma219741974
Popple River220241972
Crandon220091969
Amberg220191986
Washington I219781978
Esdaile220231966
Cochrane219861972
Hatfield219981984
Mather220101974
Wis Rapids220212021
Princeton220241980
Eden220011995
Briggsville220232000
Chaffey120221981
Iron River120241969
Minong120191974
Grand View120231971
Shanagolden120141975
Montreal120231969
Land O Lakes120151974
Hudson120232009

Barred Owl Population Trend in Other States

alabamaalaskaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawashingtonwest-virginia

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