There is no field for Birthdays in Contacts

[Android Central Question]

My old contacts still show a field for adding a birthday, which then appears in my Birthdays Calendar. However, the new Contacts don't have the field for birthdays anymore, so that my Birthdays calendar don't show birthdays for new contacts. I could add manually birthdays in My Calendar, but they don't show in Birthdays calendar.
What happened to the Birthday Field in the Contacts?

 

[methodman89]

Open the dialer, Under More, Event, Birthday.

 

[Rukbat]

Tap More Fields, then scroll down - it should be 5 up from the bottom.