What is it about this house and Black Cats?

Having forcibly re-homed the scraggy pair that attempted a similar coup a year or so back I now have another ginormous black tom cat attempting to move in. And I mean huge cat! Oberon is 6kg and he looks like a kitten against this monster.

Every time I leave a door or window open he's in - and scarfing down my trio's nosh. And in this weather keeping the house shut and cat proof is not really an option.

His size may indicate a number of ‘feeding’ stations around the neighbourhood are being visited by this critter. He is just, in the words of a highlander of my acquaintance, a wee chancer.

Yesterday I came out of my study to answer the door - and there he was curled, up on the landing carpet, fast asleep. He scarpered as soon as I yelled at him— but really. Its getting too much.

He has a collar so must belong to someone - and is V large and sleek so not a stray. So it must be this house. Is there some sign only felines can detect saying "BLACK CATS WELCOME HERE" ?

I have tried shouting at him, squirting him with water pistols, even on one occasion throwing my flip-flops at him – little varmint just will not take the hint that he’s not welcome!

Never had this trouble when old Crunchie was here. Tiny, aged and frail— but indomitable!!! The old girl kept all comers at bay with merely a look!