Czyz, B., M. Borowiec, A. Wasinska, R. Pawliszko, and K. Mazur. “Breeding-Season Dispersal of Male and Female Penduline Tits (Remiz Pendulinus) in South-Western Poland”. Ornis Fennica, vol. 89, no. 3, Sept. 2012, pp. 216–221, doi:10.51812/of.133808.