Currently, Birthdays are displayed on the left side of the "Members" page. Not many people go there so thus seeing current birthdays doesn't really happen that often. I suggest moving it to the front page and have it added to the sidebar under people who are online. Another suggestion would be to add a Birthdays subforum under Off-Topic for people to make Happy Birthday threads. I'm shamelessly requesting this because my birthday is coming up along with a few others in the community.