The era is gone: Angry Birds will be removed from Google PlayThe developers said that the game affects the popularity of other studio projects, including Angry Birds 2, Angry Birds Reloaded and Angry Birds Minecraft.
The game will remain in the App Store, but "until further consideration" and under a different name — Red's First Flight. Why they didn't do this with the Android version is unclear.
Rovio Classics: Angry Birds (which will be removed) is a remake of the original 2009 game. It came out last year, costs only a dollar and lacks in-app purchases.