With the Angry Birds Roost app, swipe to the download section in the main panorama.
- Browse for a ringtone you wish to use.
- Tap on the ringtone to download it.
- After the Ringtone is downloaded, tap to install it.
- Next you can change the name of the ringtone and check the box to set it as your current ringtone.
- Tap the OK button and the ringtone is now installed on the phone.
Note: Ringtones are saved in Settings > ringtones+sounds > Ringtone. You use them to personalize your notification alerts, whether it's calls, SMS's, emails, voicemails, reminders or your alarm clock.