How do I enable birthday reminders or view birthdays as events in Calendar on Nexus 4

Simple problem: I forget the birthdays of my friends. I have the dates saved in my contacts (CardDAV-Sync address book) and can view them with the People app. I have not found a way to set up an alert or reminder, though. Alternatively I'd like to see them as events in Calendar. I would hope there is some option in the stock Android 4.3 of my Nexus 4 to configure this, but if it is not possible, do you know of a simple reminder app _that does not ask for full internet access_? Thanks in advance.