Based on 1,614 research-grade iNaturalist observations in Connecticut, Double-crested Cormorant is most often recorded in August; in Connecticut it behaves like a summer visitor / breeder. It ranks #22 among birds recorded in the state in our data.
Nannopterum auritum
Double-crested Cormorant in Connecticut by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Connecticut in August
Osprey
Great Blue Heron
American Goldfinch
Great Egret
American Herring Gull
Ruby-throated Hummingbird
Wild Turkey
Red-tailed Hawk
Places to look in Connecticut
Botanical GardenConnecticut College Arboretum
Botanical GardenMarsh Botanical Garden
State ParkGillette Castle State Park
State ParkHammonasset Beach State Park
State ParkBigelow Hollow State Park
State ParkDinosaur State Park and Arboretum
FAQ
When does Double-crested Cormorant appear in Connecticut?
Mainly April–October, with the most records in August.
How common is Double-crested Cormorant in Connecticut?
It ranks #22 by number of iNaturalist observations among birds in Connecticut (1,614 records in our sample).