Are the other cats strays? How sweet of you to feed and look out for them!
I think they are all of the same litter. Last year someone dumped a beautiful long haired girl in here. Shortly, she had kittens.. about 4 of them, I think these are the kittens. Mama got killed on the highway several months ago.

Meowmie!!! Zombiecats are at the door!!!!!
YIKES Ya iz rite!