Odd issue... If I delete the birthday info from a contact on icloud.com it does not remove it from the subscribed birthdays on the calendar. The update will show up on my iPhone and Mac, with the change being reflected in the Calendar app on the phone and in iCal, but on the web side it never updates. I've tried removing and re-adding the Birthday calendar, but so far no go. Same also if I delete the actual contact. Anybody else run into this and found a solution?