I know for a fact that it should not be a black one.

I keep my cat food in my porch and Boyfie likes to accompany me to get it.
He can see out of it and there was a black cat strolling about his own
business over the road.
Boyfie immediately puffed up and was about to go out there and destroy. He
has never forgotten that black cat that bullied him, even though it has
moved away. OK KFC sorted it then, but no black cat can come near the house
now, since he is brave enough to fight for himself.
A poor little girlie black cat was just passing through the garden and he
jumped on her a while ago.
No black cats allowed here :-( which is a pity as I would quite like one.
Tweed