From the iCal page
And from the Automator pageBirthday Calendar
Always know the birthdays of everyone in your Address Book with this automatic calendar in iCal.
So which is it? Is the Birthday Calendar automatic? or do you have to run an automator script to update it? or do the program managers for iCal and Automator not talk to each other?You can easily automate tasks such as renaming a large group of files, resizing dozens of images to fit an iPhoto slideshow or creating iCal birthday events using Address Book contacts, then repeat those tasks again and again.