Tag Archives: magpies

Magpie – Black-billed and Yellow-billed

Magpie Origin

Black-billed Magpie

This Black-billed Magpie was photographed in Denver Colorado. It is common to see either of the American Magpie species walking on the ground foraging for food.

The magpies of North America are very visually distinctive from other birds and thus easy to identify. Although the Black-billed Magpie is very similar in appearance to the European Magpie, it is larger and genetically unique. DNA analysis places our two magpies as separate from the European Magpie. DNA distinctions caused the AOS to divide the American Magpies from the European Magpies. The same logic should apply to the Korean subspecies.The ancestral magpies, after dispersing across Eurasia and becoming isolated in Korea, then crossed over the Bering Land Bridge into the Americas at about 3 to 4 million years ago.Strictly speaking, using DNA comparisons, the AOS (American Ornithological Society) could potentially merge our two magpie species. Continue reading