The Eggs

The Eggs are the Birds most desperate items they want in the game, this is why the Birds are angry because of the pigs who stole them.

Number of Eggs In Every Game
There are 3 eggs and appears foverer in the original game and Trick or Treat, 1 in Season's Greedings and Go Green, Get Lucky, and 2 in Hogs and Kisses.

More facts

 * They are called "Poached Eggs" in the beginning.