Lislevand, T, I. Byrkjedal, and G. B. Grønstøl. “Dispersal and Age at First Breeding in Norwegian Northern Lapwings (Vanellus Vanellus)”. Ornis Fennica 86, no. 1 (March 31, 2009): 11–17. Accessed May 13, 2024. https://ornisfennica.journal.fi/article/view/133716.