Pica is the
genus of three
species of
birds in the family
Corvidae in both the
New World and the old. They have long tails and have
predominantly black and white markings. One species ranges
widely from Europe through Asia, one occurs all over North
America and the third is restricted to California. They are
usually considered closely related to the blue and green
magpies of Asia, but recent research (Ericson et al., 2005)
suggests their closest relatives are instead the Eurasian
crows.
Two or three species were generally recognized, the
Yellow-billed and one or two black-billed ones. Recent
research has cast doubt on the taxonomy of the Pica
magpies (Lee et al., 2003). P. hudsonia and
P. nuttalli are each other's closest relatives, but may
not be different species. If they are, however, at least the
Korean race of P. pica would have to be
considered a separate species, too.
European Magpie, Pica pica
Korean Magpie, Pica (pica) sericea
Yellow-billed Magpie, Pica (pica) nuttalli
Black-billed Magpie, Pica (pica) hudsonia
A prehistoric species of magpie, Pica mourerae, is
known from
fossils.
References
Ericson, Per G. P.; Jansén, Anna-Lee;
Johansson, Ulf S. & Ekman, Jan (2005): Inter-generic
relationships of the crows, jays, magpies and allied
groups (Aves: Corvidae) based on nucleotide sequence
data. Journal of Avian Biology36:
222-234.
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Lee, Sang-im; Parr, Cynthia S.; Hwang,Youna;
Mindell, David P. & Choea, Jae C. (2003): Phylogeny of
magpies (genus Pica) inferred from mtDNA data.
Molecular Phylogenetics and Evolution29:
250-257.
DOI:10.1016/S1055-7903(03)00096-4
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