Based on 2,279 research-grade iNaturalist observations in Connecticut, Canada Goose is most often recorded in May; in Connecticut it behaves like a seasonal. It ranks #5 among birds recorded in the state in our data.
Branta canadensis
Canada Goose 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 May

American Robin
Gray Catbird
Red-winged Blackbird

Baltimore Oriole

House Sparrow

Tree Swallow

Northern Yellow Warbler

Northern Cardinal
Places to look in Connecticut
Connecticut College Arboretum
Marsh Botanical Garden
Gillette Castle State Park
Hammonasset Beach State Park
Bigelow Hollow State Park
Dinosaur State Park and Arboretum
FAQ
When does Canada Goose appear in Connecticut?
Mainly December–August, with the most records in May.
How common is Canada Goose in Connecticut?
It ranks #5 by number of iNaturalist observations among birds in Connecticut (2,279 records in our sample).