Hafstad, Inge, Bård Gunnar Stokke, Johan Reinert Vikan, Jarkko Rutila, Eivin Røskaft, and Arne Moksnes. 2005. “Within-Year Nest Reuse in Open-Nesting, Solitary Breeding Passerines”. Ornis Norvegica 28 (January), 58-61. https://doi.org/10.15845/on.v28i0.190.