Final answer:
Migration helps individuals in bird populations like Canada geese survive by making it more likely to find necessary resources like food and mates.
Step-by-step explanation:
Migration can enhance the survival of individuals in bird populations like Canada geese primarily because it makes finding necessary resources more likely. This seasonal movement is a common strategy across various groups of animals and is typically associated with searching for food, mates, or more favorable environmental conditions. For example, birds may migrate south during the winter to find warmer climates with ample food sources. Animals such as the Arctic Tern undertake incredibly long migrations of up to 40,000 km (24,000 mi) round trip each year for breeding and feeding. However, it's important to note that migration, while beneficial in finding resources, is not without its energy costs and risks, which is why not all capable animals choose to migrate.