García, Javier, Arild Johnsen, Benito Fuertes, och Susana Suárez-Seoane. 2017. ”Evolutionary Divergences in Luscinia Svecica Subspecies Complex – New Evidence Supporting the Uniqueness of the Iberian Bluethroat Breeding Populations”. Ornis Fennica 94 (3):141–149. https://doi.org/10.51812/of.133919.