«Species factsheet: Pica pica».BirdLife International.[Consulta: 20 novembre 2015]. NB – BirdLife International consider the North American black-billed magpie (Pica hudsonia) as a subspecies of Pica pica.
Madge, S. .«Arabian Magpie (Pica asirensis)». A:del Hoyo, J. . Handbook of the Birds of the World Alive. Lynx Edicions,2009. DOI10.2173/bow.eurmag5.01.
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Zhang, R. ;Songa, G. ;Qua, Y. ;Alströma, P. ;Ramosa, R. ;Xinga, X. ;Ericsone, P.G.P.;Fjeldsåf, J. ;Wangg, H. «Comparative phylogeography of two widespread magpies: Importance of habitat preference and breeding behavior on genetic structure in China».Molecular Phylogenetics and Evolution,vol. 65,2,2012,p.562–572. DOI: 10.1016/j.ympev.2012.07.011. PMID: 22842292.