my bb also doesn't want to drink milk most of the time!! he is 17 months old.
Yesterday I forced him to drink 6 oz in 1 hour, but he refused and only drank 3oz...then after 2 hours (I didn't give him anything else to eat / drink except water), when he saw the milk bottle, he pointed to it and asked me for it and he finished it all!!!
I think he will drink it when he is hungry! You can just try not to give him anything else if he doesn't drink milk and when he is hungry he will drink it!!
ai.....now I have to switch on the tv (cartoons) when I feed my baby milk, so he will take a few oz, otherwise he doesn't want to drink it when he sees the milk bottle either!!! :-( :-(