My little female feral, Momma, has been showing up 3 times a day for three years. Her buddy, Charlie, has always been with her. Charlie greets me each morning with chirps and meows and lets me stroke his back all the way to his tail. Momma, on the other hand, still won't eat until I go back into the house and close the door. Every evening they get a cat treat and Charlie lets me put in down in front of him but when I put Momma's down she often swats at my hand and gives me the evil eye. She's funny but what gives? She's comfortable enough to sleep on the porch but she just doesn't trust me. Are there ferals who never become fully trusting?