Canada Geese are found in many types of watery habitat, including lakes, rivers, marshes, bogs and sloughs. In their breeding range, a pair usually requires at least five acres of open water plus access to upland fields or open land for grazing. In winter, geese need grazing habitat for feeding and open water for drinking.
Geese are vegetarians, eating a variety of plant species and parts, especially grasses, sedges, grain and berries. They often feed in flocks, and have become fond of farm-grown grains, especially corn and shoots of winter wheat. These birds are exceedingly adaptable to human-altered habitats and are common on suburban parks, lawns and golf courses.