Gohli, J., J. E. Røer, V. Selås, I. Stenberg, and T. Lislevand. 2011. “Migrating Lesser Spotted Woodpeckers Dendrocopos Minor Along the Coast of Southern Norweay: Where Do They Come From?”. Ornis Fennica 88 (3):121–128. https://doi.org/10.51812/of.133774.