Foreman Pig

 Moustache Pig(AKA Grandpa pig)s are a species of Pigs in the Angry Birds series.They are considered the right-hand-men to the King Pig, and are the second strongest of all the Pigs in the game. They first appear at the end of World 2, where a single Moustache Pig appears as the main enemy of Theme 2-21. Following the defeat of the first Moustache Pig, they are more commonly seen.

Moustache Pig Bosses
There have been 4 Moustache Pig bosses: Mr Moustache (At the end of second world in Poached Eggs and in Mighty Hoax ) Mounting Moustache (At the end of second world in Danger Above) Mason Moustache (At the end of second world in The Big Setup ) and Clint Eastbacon (At the end of second world in Ham 'Em High ). Mine and Dine are Cave Conqueror(Finish World 16). Also, these bosses are also seen in some Angry Birds achievements.

Trivia

 * Moustache Pigs are also considered to be the most elderly of the Pigs due to their saggy eyes, white eyebrows, and the fact that their nostrils sweat when they're hurt.
 * Moustache Pigs are shaped differently then all other pigs in the game.
 * In the Cinematic Trailer, a Moustache Pig is seen cooking eggs on a frying pan without cracking them open, suggesting that the pigs do not know how to cook, despite their greed for eggs.
 * When the birds fail a level, Moustache Pigs don't smile. Instead, they close their eyes in triumph.
 * In Hogs and Kisses, it falls in love with a Female Pig in the credits and cupid pig winks at you in triumph.
 * In the Chrome verson the Moustache Pigs' eyebrows are brown,not white.