Small Pig

The Small Pig (also called Piglet) is a species of pigs featured in Angry Birds and Angry Birds Seasons. He is the first pig encountered in the entire game, starting at Theme 1-1. He is also the weakest species of pig in the games he appears in, as he can be defeated by a simple falling bird or block. Only a single Blue Bird without spliting can defeat an unguarded Small Pig. He is weaker than all the other pigs in the game and is very common after it's first appearance.

Some important small pigs:

Little Timmy

Construction pig on the cover of The Big Setup

Mining pig on the cover of Mine and Dine