Genes decide the willow warbler’s migration routes
Published 6 February 2023 Photo: Harald Ris. Since antiquity, humans have been fascinated by birds’ intercontinental migratory journeys. A new study from Lund University in Sweden shows that two areas in their genome decide whether a willow warbler flies across the Iberian Peninsula to western Africa, or across the Balkans to eastern and southern Africa. Researchers have long known that the behavi
https://www.science.lu.se/article/genes-decide-willow-warblers-migration-routes - 2025-07-05