Hi - I have had cats all my life, and have 5 now. When I adopted my latest foster I wondered if his coloring was rare. He is not calico, but he is a white and gray striped fellow with a few patches of tan around his eyes, on his tummy etc. Is that unusual? He is about 9 months old now, very small and by all accounts very healthy. He does act like he may be mentally impaired or a little brain damaged. He lost a littermate shortly after birth with breathing issues and it is thought he may have been oxygen deprived. He is a complete joy, and the other cats are all very protective of him and love him.