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Guillaumet, Alban; Pons, Jean-Marc; Godelle, Bernard; Crochet, Pierre-Andre (2006). "History of the Crested Lark in the Mediterranean region as revealed by mtDNA sequences and morphology". Molecular Phylogenetics and Evolution39 (3): 645–56. PMID16473529. doi:10.1016/j.ympev.2006.01.002.
Gill, F; D Donsker, eds. (30 June 2013). "Waxwings to swallows". IOC World Bird List: Version 3.4. International Ornithologists’ Union. Arquivado dende o orixinal o 24 de xullo de 2011. Consultado o 30 July 2013.
Gill, F; D Donsker, eds. (30 June 2013). "Waxwings to swallows". IOC World Bird List: Version 3.4. International Ornithologists’ Union. Arquivado dende o orixinal o 24 de xullo de 2011. Consultado o 30 July 2013.