I have photographed a few Blue Jays (Cyanocitta crostata). All of these were of the subspecies Cyanocitta crostata crostata. I have one photograph of one that has a bald head due to molting.
Blue Jay, Sunset Beach, North Carolina, USA, July 18, 2009
Blue Jay, Chapel Hill, North Carolina, USA, September 6, 2009
Blue Jay, Chapel Hill, North Carolina, USA, September 6, 2009
Blue Jay, Chapel Hill, North Carolina, USA, August 16, 2009