Wingman

Wingman is a Power-Up bird on Angry Birds Friends! and Angry Birds Space, and a normal bird in Angry Birds Seasons.

Appearance
He is Terence with a dark blue mask with yellow stripes and a yellow W. In Angry Birds Space, he is the same as Angry Birds Friends but it's Incredible Terence without pupils, hence why he is green in that game.

Angry Birds Friends!
He appears in Angry Birds Friends! as a Power-Up, as said above. He has the same strength as Terence but has an enhanced speed and shockwave. After he does something, he will say 'POW, SCRATCH', OOF', AARGH and other comic exclamations. He can brought by the following prices:
 * ABF Wingman.png X2: Bird Coins.png 60
 * ABF Wingman.png X21 (+1 Free): Bird Coins.png 600
 * ABF Wingman.png X55 (+5 Free): Bird Coins.png 1500
 * ABF Wingman.png X230 (+30 Free): Bird Coins.png 6000

Angry Birds Space
Wingman appears as a Power-Up. He has the same strength as The Incredible Terence, but with a new ability: he can attract things in an activated wave.

Angry Birds Seasons
Wingman appears on the Comic-Con level of Pig Days, where he is just Terence with a mask.

Angry Birds Reloaded
Wingman once again appears a power-up, retaining his properties from Seasons

Trivia

 * Wingman is one of many power-ups to be an extra bird. Others include Shockwave, Telebird, Call the Flock and Clone Bird.
 * Wingman originally had many different mask concept designs for Rovio to pick as the design for Wingman. The fourth one in the second concept art picture above ended up being used.
 * In Angry Birds Friends, Wingman is very overpowered when both the Power Potion and King Sling is used on him.
 * Use Wingman, and after he appears use both the Power Potion and King Sling in any order, and you will have created the most overpowered bird in the game. He can mow through and obliterate glass, wood, stone, pigs and other objects without losing speed, and will only stop when he collides with the wall, ground or ceiling. This combo is very useful for getting three stars in a tournament level or beating someone in Star Cup due to insane amounts of points, and is considered by a few to be the most broken, overpowered power-up combination in the entire game.
 * Sling Scope is optional, but it is mostly used to aim Wingman where the biggest structure is so he can destroy it and rack up massive amounts of points.
 * His normal counterpart, Terence, can be used as a sort of substitute for Wingman if you can't afford him.
 * His voice was completely changed in Angry Birds Reloaded.