Starting Rice Cereal

Katherine
Has anyone started it in the bottles yet?
Baby boy will be 3 months next week, and I'm thinking about it. He sleeps through the night already, so it's not that. He's already drinking 40oz of BM/formula in a 24 hr period, but he STILL seems hungry a lot of the time. I'm thinking he may be ready for some rice cereal in his bottles. He seems to be hitting a lot of his milestones early, so maybe this is one..
What do y'all think?