Where do swallowtail butterflies mate?

Swallowtail butterflies typically mate in open areas, such as meadows, gardens, or near water sources, where they can easily find each other and engage in courtship displays. Males often patrol territories to attract females, performing aerial displays to showcase their readiness to mate. Once a female accepts a male's advances, they usually mate while perched on vegetation. After mating, females search for suitable host plants to lay their eggs, ensuring the next generation has the right environment to thrive.