Cardinal Song

This morning I heard a cardinal sing in the spruce tree outside my bedroom window. The sound of the cardinal song was so beautiful, I stopped in my tracks.  The sound represented summer and sunshine and cut grass.  It took me only seconds to figure out it was a cardinal.  I wondered what it was about the sound of a cardinal that makes it so special?  They're here all winter.  Cardinals are common in my yard.  Later in the day I saw that two people wrote on the Minnesota Ornithological Union listserve emails appreciating the sound of a cardinal.  I wasn't the only one today who was struck by the beauty of the cardinal song.  Listen for yourself.  The cardinal sounds as pretty as it looks conspicuous.