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

Barred Owl Population Trend in Connecticut

All statesGeneralists

Barred Owl in Connecticut has risen sharply: up 65% on the route-weighted index since 1979.

+65%Since 1979
16Routes In State
27Years

Notable Barred Owl Trends in Connecticut

long arc increasecomputed index

Barred Owl has risen sharply in Connecticut: up 65% on the route-weighted index since 1979.

Barred Owl Population Forecast in Connecticut

If the recent trend holds, Barred Owl in Connecticut is projected to fall about 28% by 2029 — from 0.33 in 2024 to a central estimate of 0.24 (95% range 0.00–0.50). A 5-year backtest shows a typical error of ±56.3%, with 100% of held-out values landing inside the 95% band.

-28%Change by 2029
0.24Projected 2029 index
0.00–0.5095% range
±56.3%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
20250.230.000.49
20260.230.000.49
20270.240.000.49
20280.240.000.49
20290.240.000.50

Barred Owl Survey Routes in Connecticut

Routes recording Barred Owl in Connecticut.
Greenwich420142014
Mid Haddam320241979
Buckingham220222013
Uncasville220181980
New Hartford220182011
Warren220101977
Mystic120212001
Willimantic120161967
No Woodbury120231967
Sherman120122012
Danbury120152015
Long Hill120192005
Southington120232023
New Hartford119771977
Woodstock 2120222017
Warren 2120232013

Barred Owl Population Trend in Other States

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

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