Image: Ohio State University <P>Some sparrows, a new study finds, are remarkably picky about which songs they sing, showing a clear preference for melodies sung by birds of the exact same feather. Indeed, Douglas Nelson of Ohio State University reports in today's issue of the Proceedings of the National Academy of Sciences that male mountain white-crowned sparrows (r By mcswellin Science > Ethologywith birdsethologymusicalpreferencesscience