The Northern Mockingbird is America's most famous bird mimic, that is capable of imitating not only other birds, but also mammals and even car alarms! This mimicry is thought to aid in sexual selection.
Mockingbirds form the central metaphor in Harper Lee's courtroom modern classic, in which her protagonist thinks that it is a sin to kill a mockingbird because "they don't do one thing for us but make music for us to enjoy. They don't eat up people's gardens, don't nest in corncribs, they don't do one thing but sing their hearts out for us". I'm sure that the predator of the mockingbird such as bobcats and coyotes disagree.
This work by Rohan Chakravarty is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.