Walankiewicz W, Czeszczewik D, Mitrus C. Natural nest sites of the Collared Flycatcher Ficedula albicollis in lime-hornbeam-oak stands of a primeval forest. Ornis Fenn [Internet]. 2007Dec.31 [cited 2024Nov.23];84(4):155–162. Available from: https://ornisfennica.journal.fi/article/view/133693