Guess that bird...

We had one of these sweeties visit our feeder last week.   They pass through in the late fall and winter and then again in late winter.  

Answer below the fold.....
White throated sparrow.  

They sing a sweet mournful song, 'Poor Sam Peabody, Peabody, Peabody'.   In Canada they sing, 'Oh, sweet Canada, Canada, Canada'