Sjöberg, Nils. “Arrival Dates 1948—2006 and Breeding 1978—2006 in Jämtland for Pied Flycatcher Ficedula Hypoleuca, Redstart Phoenicurus Phoenicurus and Willow Warbler Phylloscopus Trochilus”. Ornis Svecica 16, no. 3 (July 1, 2006): 118–126. Accessed November 22, 2024. https://journals.lub.lu.se/os/article/view/22719.