Still no luck. We had tornado warnings and heavy rain all afternoon and evening last nite, so I couldn't look under the deck for the cat. Nobody was out roaming in the storm, either.
Thanks for the suggestion about trapping a skunk! Hopefully that won't happen, but I seem to catch all the wrong critters.
Thanks so much for all your support. I am not going to give up unless and until I know it's too late. I wish I could give all the strays a home.