So i have decided not to allow Facebook display my birthday to my friend’s notification this year and i will share with you how I hide birthday on Facebook notifications from friends.

In your Facebook account, go to your profile section.



Click on contact and basic info on the left side menu



Scroll down to birthday and click on edit on the right side.

Choose “Only Me” from the drop down option that appears.



Don't forget to send me a birthday shoutout on Nairaland. Save the date!

SOURCE: http://webtechgarden.com/how-to-hide-birthday-on-facebook-notifications/