Geography of Canada Canada's territory as sparsely populated wilderness; Canada's population density is 3.5 people/km (9.1/mi), among the lowest in the world. Despite this, 79.7 percent of Canada's population resides in urban areas, where population densities are increasing. Canada shares with the U.S. the world's longest undefended border at ; are with Alaska. The Danish island dependency of Greenland lies to Canada's northeast, separated from the Canadian Arctic islands by Baffin Bay and Davis Strait. The French islands of Saint-Pierre and Miquelon lie off the southern coast of Newfoundland in the Gulf of St. Lawrence and have a maritime territorial enclave within Canada's
Baffin Island has snow over it, and create a small "igloo" where they whelp one or two pups. Within three weeks the pups are in the water and swimming. During the summer, ringed seals keep to a narrow territory approximately along the shoreline. If pack ice moves in, they may venture out and follow the pack ice, dragging themselves up on an ice floe to take advantage of the sun. Nesting birds are summer land visitors to Baffin Island. Baffin Island is one of the major nesting destinations from the Eastern and Mid-West flyways for many species of migrating birds. Waterfowl include