Why didn't frightful want to migrate south?

Frightful, the young falcon in "My Side of the Mountain," hesitated to migrate south because she had developed a strong bond with Sam and had become accustomed to the freedom and familiarity of her home in the mountains. The prospect of leaving behind her territory and the companionship she found with Sam made the idea of migration unappealing. Additionally, her instinctual drive to fly south was overshadowed by her desire for independence and the unique experiences she had come to cherish.