[1]
Sjöberg, N. 2006. 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, 3 (Jul. 2006), 118–126. DOI:https://doi.org/10.34080/os.v16.22719.