Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Black-billed Magpie is a bird in the crow family that inhabits the western half of North America. It is notable for its domed nests, and for being one of only four North American songbirds whose tail makes up half or more of the total body length (the others being the Yellow-billed Magpie, the Scissor-tailed Flycatcher, and the Fork-tailed Flycatcher). Externally, it is almost identical with the European Magpie, Pica pica, and is considered conspecific by many sources. The American Ornithologists' Union, however, splits it as a separate species, Pica hudsonia, on the grounds that mtDNA sequence studies place it closer to California's Yellow-billed Magpie, Pica nuttalli, than to the European Magpie. If this view is correct, the Korean subspecies of the European Magpie, Pica pica sericea, should also be considered a separate species.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.