They have mostly monocular vision. Canadian Geese have excellent hearing and the ears are located on the side of its head During warm days of the year, geese flatten their feathers against their body to reduce the dead air space and keep them cool. On cold days, they fluff their feathers to increase their insulating ability These birds love to swim and bathe in the water, especially on warm days. The Geese swim and flap around and sometimes completely submerge themselves. Some subspecies have a yearly molt of flight feathers in the summer and become flightless during this time.
Migrations begin in the fall.
Large winter aggregations form while on lakes, coastal waters, and mudflats. Canada Geese have been hunted by humans for hundreds of years. Indians used to hunt them in the spring migration. Eskimos hunted them by taking advantage of the molt that leaves them flightless. Even early white settlers took advantage of these birds and hunted them for food.