# Genetic ancestry plays a key role in the migration of Cory's shearwaters > HelixNews · Web page: https://helixnews.one/story/388158 · All pages for agents: https://helixnews.one/llms.txt 1 outlet covering · First listed: Phys.org, Nov 10, 2026, 7:00 PM · Read it: To what extent do genes influence the migratory routes of birds? The factors that determine the long-distance migrations of seabirds are not yet fully understood. Now, a study published in the journal Molecular Ecology reveals that, in the case of Cory's shearwater, an individual's genetic ancestry is a more significant factor in their migratory decisions than their social environment in the breeding colony. ## Who's covering it In the order they published: - Nov 10, 2026, 7:00 PM: [Genetic ancestry plays a key role in the migration of Cory's shearwaters]() — Phys.org (Science news) To what extent do genes influence the migratory routes of birds? The factors that determine the long-distance migrations of seabirds are not yet fully understood. Now, a study published in the journal Molecular Ecology reveals that, in the case of Cory's shearwater, an individual's genetic ancestry is a more significant factor in their migratory decisions than their social environment in the breeding colony.