Giant Canada geese mate for life, live for an average of 12 years, begin breeding at 2 years of age, return to nest where they themselves were born, lay an average of 6 eggs. These 6 eggs may result in 12 adult Giant Canada geese after 3 years, 30 adults in 5 years and 75 adults in 7 years! Egg depredation can dramatically improve the numbers of nuisance geese that defecate on your property, destroy your turf and landscaping, and harass your clients.