Well, it is always nice to be more informed on the nature in your surroundings.  I found out today that it is not a plain sparrow who has built a nest on my deck but rather a Carolina Wren.  Actually Carolina Wrens pair up and both male and female birds take care of their nest.  So, those tiny chicks that hatched yesterday on my deck are in fact Carolina Wrens.  This makes watching these baby birds grow so much more interesting!