Kortesalmi, P., Pääkkönen, S., Valkonen, J., & Nokelainen, O. (2023). Bean goose migration shows a long-term temporal shift to earlier spring, but not to later autumn migration in Finland. Ornis Fennica, 100(2), 61–68. https://doi.org/10.51812/of.119806 (Original work published 12. huhtikuuta 2023)