Caught!

 I finally caught the young black yard stray, causing issues all over the neighborhood, with his yowling and fighting (mainly with old Fritter).

I spotted him trying to make friends with one of my cats through the cat yard fence this afternoon, so reset the trap I've had out there trying to catch him.  I really didn't think he'd go in.  He hasn't ever expressed interest in the trap or the food in it before.

But this time, I looked out 20 minutes later, and he was in it.

Finally.   At one time, after he showed up in my yard and neighbors yards, I went door to door, trying to find out if someone owns him.  I had no luck, although right when I was asking at one house down the block, another lady I'd talked to, yelled from her car, Is that him you're talking about?   Sure enough, he was frantically trotting down 30th street, but ducked into a backyard.

We now believe he's just another abandoned kitty.   A set of apartments had been vacated for remodel nearby.   Probably he lived there and got left.

Who knows though.

He can get neutered Tuesday.  In the meantime, he'll occupy the now empty holding cage.