Please, if you are going to take care of him, take him in and give him a good home. Obviously you are feeding him, or he wouldn't stay around. My sister did this, and guess what? Other cats find out about the food you've been leaving him. My sister ended up with 50 cats. Feeding them all. Getting them spayed. Outfitting under her porch with hay. Great. Save the feline community. Her house stinks, and the mailmen and Amazon drivers don't want to go on her front porch, and friends and relatives won't come over. That's where this leads. Either take the cat in, or face the fact that you're starting your own colony. Then inform your neighbors. They might want to move. I'm going to get downvoted for this, but I've seen it with my sister and two of her friends also, that she met in a forum about taking care of feral colonies!!!!!!!!!