Lee, Parr, Hwang, Mindell,& Choe (2003):
Phylogeny of magpies (genus Pica) inferred
from mtDNA data. Molecular
Phylogenetics and Evolution 29: 250–257.
Distribition of Pica
Rathcormac,
Ballymacoda
Seoul
Kamchatskaya
Oblast
Idaho
Carmel,
Chico