There are three species of magpies on earth but this one, the yellow-billed magpie (Pica nutalli), lives only in the open oak savannah of central and southern California.
Even though barn owls (Tyto alba) occur worldwide this video could only happen there.
Like all magpies the birds are brave and relentless. One of them pulls the owl’s wing!
What are the three Pica species? Eurasian (Pica pica) in Europe and Asia, black-billed (Pica hudsonia) in western North America, and yellow-billed (Pica nutalli) only in California.
(photo by J. Maughn on Flickr, Creative Commons license; click on the image to see the original. Video by Charles Sullivan on YouTube)
p.s. Yellow-billed magpies are hard to find near Chico, California ever since West Nile Virus came through. I was afraid I’d never see one but J. Maughn (his photo is at top) suggested looking at eBird for recent sightings. Ta dah! I went to a place near Big Chico Creek where magpies had been seen this month and found a pair building a nest. Life Bird!