[1]
Nyholm, N.E.I. 2019. Return rates of nest-box breeding Pied Flycatchers Ficedula hypoleuca to their breeding site in subalpine birch forest in Swedish Lapland, during 1965–2018. Ornis Svecica. 29, (Oct. 2019), 53–68. DOI:https://doi.org/10.34080/os.v29.20019.