Their mother came to us few months ago, she was already pregnant when she came here. I suspect that she has been thrown out by a family as she is very friendly with people, stray cats usually run at the sight of strangers.
She then gave birth to this 4 kittens (1 orange, 1 light grey, 1 whitish-grey, 1 greyish black)
As I have already 16 stray cats now, I hope some kind soul would adopt them.
I will subsidise for the spaying when they are mature enough, hope they could find a better home :)