the MD Department of Natural Resources knows.

Canada Goose
(Branta canadensis)

Canada Geese are common in Maryland, and we have populations of both migratory and resident Canada Geese. The migratory Canada Geese overwinter in Maryland but are part of the Atlantic population that nests in northern Québec along Ungava Bay, the northeastern shore of Hudson Bay (where 80% of the breeding birds are found!), and in the interior of the Ungava Peninsula. In contrast, the resident Canada Geese are distinct from their migratory cousins. These year-round residents may be products of our state’s earliest Canada Goose stocking in Maryland, which dates back to 1935 when a group of 41 geese were transplanted from the Midwest to Dorchester County.>>>

https://dnr.maryland.gov/wildlife/Pages/plants_wildlife/Canada_Goose.aspx

The flocks are gathering for the trip south. Soon the skies will be filled with flapping and honking.