Whaler, thank you for your reply. I have tried a variety of foods already (people canned tuna and salmon; the cat food he loved and shrimp which was his fav food) but will try the grilled salmon. I believe he ate some of a higher quality dry food last night - the other feral girl did not like...
My MIL fed several ferals and since her passing as no one else would agree to feed them, we brought 3 who continued to come to be fed into her house and they seemed to adjust as far a feeding, using litter, etc. We recently began trapping them to get them checked by vet, spayed/neutered and...