Reviews studies made at Michigan station in management of the Canada goose (Branta canadensis), in a 10-yr. period, 1936-46, during which time the species established a substantial breeding colony. Conclusive evidence was secured that locally bred birds moved down the Mississippi Fly-way, returning to area of origin the following year. Observation of intolerance of nesting pairs to crowding, with optimum distribution of one breeding pair found to be not less than one-half acre of nesting territory.