A genus of three species of Magpie in the family Corvidae in both the New World and the old. They have long tails and have predominantly black and white markings. One widely ranging species from Europe through into Asia, and the other two from North America.
The three species are below:
Recent research has cast doubt on the taxonomy of the Pica magpies, since it appears that P. hudsonia and P. nuttalli may not be different species, whereas the Korean race of P. pica is genetically very distinct from the other Eurasian forms.
