Based on the pattern, that is not a Magpie. I'm guessing a chocolate Ancona with penciling. I'm guessing one of the parents was a tricolor Ancona, on account of all the coloring on the chest.
Interesting bit of trivia, many say that the Magpie is actually just an Ancona but with a very specific pattern. But there isn't a lot of information on Magpies so it can't be said with 100% certainty. Also, the Ancona was breed from Runners.