That's nifty! Maybe momma cat will see that he's not being harmed by taking things from "the big ol'e monster", and also come eat out of your hand!
I live in my dad's basement, so my door is actually the patio door from the recreation room (which I have turned into my living room). I had put the feeding station right out on the edge of the patio, so all I had to do was peek out and watch the cats.
Disco would come meow at the door, like she wanted to come inside...but of course always ran away when I went to open the door. But one day, when we got an early snow, she didn't go too far...so I put canned food just inside, and waited. When she came to eat, I hurried and shut the door behind her (almost got a tom-cat too, but he was too quick and escaped). Then of course when I made the appointment to get her spayed, I had to set the humane trap inside! LOL
I was sort of hoping she would stay around like that, and I could let her in at night... but she stays in the thicket with the colony (though if I go there, she'll still let me pet and hold her).