Have suppressor. Will travel.

For a kitten, you a bad dude.....

Thanks for the suggestions fellas. I am probably going to try the fox urine first. Hopefully, it doesn't smell too bad since they go in right by our front door. If that doesn't work, trapping will follow.

I doubt the citrus stuff would work on the big one. You could smell the Cat Mace from the sidewalk. It bothered me more than it did the cat. Had a thick smell of orange gingerbread cookies or something.

Not a bad idea Cast. If it wasn't for the animal-loving wife and the gooberment dragging their feet on my stamps, I'd have a few items that would do the trick.
If all fails and she takes a weekend trip somewhere, I'll be sure to reach out. I'll buy the beer and you'll have a present for WoundedBear.

If the cats live in your storm drain after the last rain them are some bad dudes.I would proceed with caution.

Old foothold victor 1 1/2 and a baseball bat

Use pecan shells as mulch...it hurts their feet and they won't do their business in pecan shells.