A long overdue update:
A week ago, I managed to trick Ratbait into eating a couple fuzzies by taking away his water bowl and offering him sopping wet mice.
Yesterday, I offered him the baby bird I tried to save (it died from injuries related to being on hot asphalt). He nabbed it from me, but dropped it because it was so small compared to him. And then because the bird had landed in his coils, he tried to eat himself. Multiple times. After he found the bird again, I offered him a hopper which he went for without hesitation! He also had 2 fuzzies. Next week, he gets an adult mouse!
He's also gotten a lot feistier! XD