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

Barred Owl Population Trend in Maine

All statesGeneralists

Barred Owl in Maine has increased: up 33% on the route-weighted index since 1975.

+33%Since 1975
45Routes In State
42Years

Notable Barred Owl Trends in Maine

No notable trend signals for Barred Owl in Maine. See the full index history below.

Barred Owl Population Forecast in Maine

If the recent trend holds, Barred Owl in Maine is projected to fall about 46% by 2029 — from 0.21 in 2024 to a central estimate of 0.11 (95% range 0.00–0.25). A 5-year backtest shows a typical error of ±74.3%, with 60% of held-out values landing inside the 95% band.

-46%Change by 2029
0.11Projected 2029 index
0.00–0.2595% range
±74.3%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
20250.110.000.25
20260.110.000.25
20270.110.000.25
20280.110.000.25
20290.110.000.25

Barred Owl Survey Routes in Maine

Routes recording Barred Owl in Maine.
Washburn319951994
Harmony219881988
Aurora220041993
Northfield 2120162014
Biddeford120022002
Kittery Pt120212021
Newcastle120071988
Wilson Mills120102006
Bethel120081979
Greenwood120242005
Reeds120062003
South Arm120091975
Otisfield Gr119821982
Hartford120231977
Bowdoin Ctr120211979
East Troy120181992
Freedom120212005
Brooks120061990
Hermon119731967
Hancock119761976
Castine119861986
Cooper120041980
Deblois119931980
Northfield119791979
Moose River119881988

Barred Owl Population Trend in Other States

alabamaalaskaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawashingtonwest-virginiawisconsin

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