M.A.
I think don't be in a rush to end the bottle. They are only babies for such a short time. My son is 17 months old and still takes a bottle at bedtime (and nap). He is completely off of formula though. Start watering down his formula or milk every couple of days. Until it's finally just water. Perhaps that will help and then just give him water in a sippy cup. Or, maybe get a "special" cup that's just for his milk/formula? Good Luck!