Birth Date Code

In the bottom right corner of each 
   picture there is a three digit
      Birth Date Code. (YMW)
   Y = Year (1=2001, 2=2002,
        3=2003, 4=2004, 5=2005,
        6=2006, 7=2007, 8=2008)
   M = Month (1=January, 2=February,
        3=March, 4=April, 5=May,
        6=June, 7=July, 8=August,
        9=September, A=October,
        B=November, C=December)
   W = Week (1= days 1-7,
                 2=days 8-14,
                 3=days 15-21,
                 4=days 22-31)
    blue = male     pink = female

Example: Jerry is a male cat whose approximate Birth Date is 2006 February third week (days 15-21)