We fed him Natural Balance limited ingredients duck and chickpea morsels that were mixed with two tablespoons of water. This food was given to us by a neighbor and the feral cats like it because there are only one protein source and no fillers.
My husband brought the food to the cat. The cat did not hiss which is an indication that it is not feral. He put the food down two feet from the cat and the cat walked by my husband, his fur brushing up on his leg. This tells us that the stray is not fearful of humans.