Full list of all 20 Angry Birds achievements worth 200 gamerscore. It takes around 30-35 hours to unlock all of the achievements on Windows Phone.
250 000 blocks smashed
Episode 3: Three stars in all levels
50 000 blocks smashed
Episode 3 finished
10 golden eggs found
Boomerang bird unlocked
Episode 2: Three stars in all levels
Episode 2 finished
5000 stone blocks smashed
5000 ice blocks smashed
Big brother bird unlocked
Episode 1: Three stars in all levels
5000 wooden blocks smashed
Episode 1 finished
1000 pigs smashed
White bird unlocked
Black bird unlocked
World 1 finished
Yellow bird unlocked
Blue bird unlocked