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Masseti, Marco (March 2010). "Mammals of the Macaronesian islands (the Azores, Madeira, the Canary and Cape Verde islands): redefinition of the ecological equilibrium". Mammalia. 74 (1): 3–34. doi:10.1515/MAMM.2010.011. S2CID86776297.
Medina, Félix M; Oliveira, Paulo; Menezes, Dilia; Teixeira, Sérgio; García, Rafael; Nogales, Manuel (July 2010). "Trophic habits of feral cats in the high mountain shrublands of the Macaronesian islands (NW Africa, Atlantic Ocean)". Acta Theriologica. 55 (3): 241–250. doi:10.4098/j.at.0001-7051.069.2009. S2CID25579227.