According to my Peterson Field Guide to Birds, a Northern Mockingbird is an excellent mimic. I'm guessing that's where it got it's name. The bird is a tad boring when sitting in a tree, BUT when it wing-flashes you, now that's a site to see. "And if that mockingbird don't sing, mama's going to buy you ..." I can't tell you how many times I sang that song to my children when they were little.
Click contact me to subscribe to my blog.