Mockingbird Northern basic information
At maturity, the Mockingbird measures about nine to ten inches (25 centimeters) in length. Most of the plumage of the mockingbird is light gray, and the underside has whitish feathering. Its wings and long tail are darker gray, and may have white splotches on them. Mockingbirds are so adept at imitating noises that, in some electric analyses when comparing the Mockingbird's voice and the original sound, no difference was seen!