How does a goose egg get fertilized?

A goose egg is fertilized when a male goose, or gander, mates with a female goose, or goose. During mating, the gander transfers sperm to the goose, which can store the sperm in specialized sacs for several days. Once the goose lays her eggs, the stored sperm can fertilize the eggs before they are encased in the protective shell. Fertilization typically occurs within a few days of mating, before the eggs are laid.