Hromada, M., L. Kuczynski, A. Krištín, and P. Tryjanowski. “Animals of Different Phenotype Differentially Utilise Dietary Niche- the Case of the Great Grey Shrike Lanius Excubitor”. Ornis Fennica 80, no. 2 (July 1, 2003): 71–78. Accessed November 22, 2024. https://ornisfennica.journal.fi/article/view/133594.