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Boomerang Bird (AKA Green Bird) is a character in the Angry Birds series of games created by Rovio Entertainment. He was introduced in 2010 and was the first new character added to the game who was not one of the original five birds in the flock, with the other three being the Big Brother Bird, the Orange Bird, and the Pink Bird in that order.

Boomerang first appeared in Theme 6-4 (as a NPC) but was playable starting with Theme 6-5. He has appeared as a playable character in every version and episode of the game released since his introduction, though he is not necessarily in all levels. In the Fuji TV exclusive episode: Sakura Ninja, Boomerang appears dressed in kendo garb. This was the first time he has appeared in costume in any game and completely new game sprites were created for this.

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Ability: Green Bird (named Boomerang) attacks much differently than the other species. When he launches, he is constantly spinning. This spinning plays into its special ability to change its course in midair to return to his point of origin (like a boomerang would). When the screen is tapped or clicked by the mouse (depending on which version of the game the player uses), Boomerang will open his large beak wide, making the bird act like a boomerang and therefore causing it to turn around and start flying back towards his point of origin. This lability to fly backwards allows the bird to strike areas that the other Flock members can't reach. Depending on when the ability is activated, the height of Boomerang's attack will vary.

Personal Data

 * Name: Boomerang
 * Known Aliases: Green Bird
 * Group Affiliation: The Flock,The Flock in Space
 * Known Relatives: None

Personality
Boomerang has a short temper when it comes to egg theft and smuggled birds and, like most of the Flock, becomes easily enraged when eggs are discovered missing and rare birds caged up. Little is known about his personality and demeanor at this time. Even though he doesn't appear in as many of the Animated Shorts as some of the other Angry Birds do, (he only appears in the Summer Pignic Short Movie) he is shown in the video as a very cheerful but clumsy bird. This is shown during the entirety of the Animated Short which displays Boomerang trying to enlist on the Angry Birds Army, in order to help defeat the Bad Piggies. However, Boomerang is denied enlistment in the Army after he accidentally knocks over the slingshot, causing the White Bird to be launched in the wrong direction. After this, he hops away sadly. After he leaves, the other birds fail the level, and Boomerang finds the Red and Blue birds near-unconscious upon his return. He eyes the slingshot and launches himself. He sails high over the Bad Piggies fort, much to the King Pig's amusement. As he nearly hits the ground- and two Bad Piggies- he opens his beak and flies back, retrieving the eggs and defeating the King Pig.

History
Little is known about Boomerang Bird’s history before he met The Flock. When first seen, Boomerang was a prisoner of the Bad Piggies until The Flock freed him. It is unknown how he was kidnapped by the pigs.

In the course of the battles with the Pigs, he has traveled to many different locations and environments, including the desert, underground caves and beaches. The Pigs never rest in their quest to steal eggs and the Flock often has to retrieve their eggs on holidays and special occasions. In one instance, the Pigs captured the entire Flock, including Boomerang, making it the second time he was captured by Pigs. Then Big Brother Bird came and freed him and stopped the King Pig.

Boomerang Bird has also traveled to China twice and Japan, where he wore kendo gear.

At an indeterminate time later, the Flock was captured as rare birds and taken to Rio de Janeiro where they fought with Blu and Jewel and their friends against Nigel and Mauro and his marmosets. Boomerang did not appear originally in Rio, but arrived much later after the others, so it is possible he was not kidnapped originally and made his way to Rio to help rescue The Flock.

In another adventure, many of the Flock were whisked into Space via a wormhole, gained super powers and fought the Space King and the Space Pigs. Boomerang has been left behind with White Bird and Pink Bird on the island.

Main Article: Angry Birds Space 

Noises

 * Pull-back noise (Classic Game, Free version,Seasons Version,Fuji TV,Chrome,Facebook): Hakkik!
 * Pull-back noise (PC): Argh-ik!
 * Launch noise (Seasons, Classic and Rio): Kik-weeek!
 * Launch noise (PC): Wahaaaaa!
 * Tap noise(Classic, Free, Seasons, Rio, Fuji TV, Chrome): YAA!
 * Tap noise (Facebook): None
 * Pain noises: the Same as Yellow Bird's.

Appearances
Boomerang Bird has appeared in the following games:
 * Angry Birds
 * Angry Birds Seasons
 * Angry Birds Rio
 * Angry Birds Space
 * Angry Birds Facebook
 * Angry Birds Chrome
 * Angry Birds Google+
 * Angry Birds Magic
 * Angry Birds in The Hunt For The Golden Pistachio
 * Angry Birds Vuela Tazos
 * Angry Birds Winter Wonderland
 * Angry Birds Fuji TV

Advantages and Disadvantages
The Boomerang Bird is very good against wood and glass, but not great against stone. When his ability is used, it's often the longer (eventually a set time) the bird can break through entire columns of wood and glass. Another way to use the Boomerang Bird is by firing it backwards and using it's ability to cause it to fly forwards.

Boomerang Bird flies farther and higher then all the other birds when fired

A common disadvantage is when Boomerang Bird is fired straight into the air, it's hard to arc him perfectly when he approaches the ground. Sometimes he will hit the ground and become a corpse immediately when he goes out of range.

Another common disadvantage is when you use the ability too close to the structure. When he starts to boomerang back, he will very quickly lose speed and not even scratch the structure.

When it comes to Piglantis in Angry Birds Seasons, another disadvantage is that the Boomerang Bird's ability is useless underwater because if his ability is used underwater, he won't be able boomerang back and he'll automatically turn into a corspe really fast.

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Trivia

 * Even though Boomerang Bird has green feathers, yellow ones appear when he disintegrates after becoming a corpse. In Angry Birds Chrome, Angry Birds Facebook and the 2012 updated version of the original game, green feathers appear (an earlier version of the Chrome version had white feathers).
 * The Boomerang Bird and the Orange Bird are the only birds who first appeared kidnapped by the pigs.
 * The Boomerang Bird will make the Yellow Bird's pain noises when being a corpse, thus making it the only bird without an original pain noise (though big brother birds made Red Bird's corpse sound in Angry Birds Facebook.
 * Boomerang bird and Blu and Jewel are also the only birds to rotate when fired from the slingshot.
 * The Boomerang Bird has a different launch voice on Angry Birds Seasons as of the Ham'o'ween update. However, the PC and Mac version of Angry Birds Classic also has the alternative voice of the bird. The phone version of the original Angry Birds has the original select and launch voice. The original voice is a sound of a bird chirping noise while the new voice used on Angry Birds Seasons and Angry Birds Classic is a "WAHAAAA!" sound.
 * The Boomerang bird and the Ice Bird are the only Birds that are shown in the level before is played in as an unplayable item.
 * On Chrome level 6-4 his corpse sprite disappears and is invisible, but when you unlock him, his corpse sprite will be the Angry Birds Rio sprite and he keeps the Yellow Bird pain noises but the feathers change from yellow ones to white ones.
 * The Boomerang Bird may be based upon the Emerald Toucanet.
 * Boomerang Birds end his of beak has red in the old design but in game he has orangish yellow at the end of beak
 * In Angry Birds Rio, Angry Birds Facebook, Angry Birds (Google Chrome), Angry Birds Vuela Tazos, Angry Birds Fuji TV, and Angry Birds in The Hunt For The Golden Pistachio the Boomerang Bird has a new design.
 * The Boomerang Bird says "RAAAH!" when he boomerangs back. However, in Angry Birds Facebook, he says the same sound when he hops on the slingshot. When he is pulled back, he says the pull-back noise from the Ham'o'Ween update. When launched, he says the original bird chirping noise. When he boomerangs back, he says nothing.
 * The Boomerang Bird is the only bird who hasn't shown an angry expression in the animations.
 * Even though his full beak is all orange, in the Summer Pignic Animated Short, the top part of his beak is yellow while the bottom section is orange just like in his old design.
 * He first appeared having green feathers in Angry Birds Facebook.
 * Except in the comics, this is the only bird that talked in the promotional videos (In Summer Pignic, Boomerang says "ba-bye!").
 * As shown in the Summer Pignic short, he is accident prone. This is only in the Summer Pignic short, as, as seen in the Angry Birds Coca-Cola Short, he is an excellent swimmer, and can even boomerang back in water.
 * Boomerang Bird Backpack Clip looks like the Rio/Chrome design of the Boomerang Bird sprite.
 * Whenever Boomerang Bird blinks, he eyebrows disappear. This only happens for his old design.
 * In the animations,the Boomerang Bird's beak is longer than its body. In the Summer Pignic short, he is shown to have a neck and a yellow face as well as 3 feathers on its tail. In the Angry Birds Coca-Cola short, he is shown to have a black marking that covers his face and belly, a complete lack of head feathers, 3 feathers on the tail and yellow eyelids. If he was wearing a swimsuit with Brazilian colors it wouldn't make much sense because he was supporting China, not South America.
 * In Piglantis, the Boomerang Bird's ability doesn't work well when he is underwater: the corspe will appear when the ability is activated.
 * In the Angry Birds Heikki promonanal art on Angry Birds Facebook page, the Boomerang Bird looks exactly like it's design in Angry Birds and Angry Birds Seasons, except the yellow ring on his beak is removed.
 * The Boomerang Bird has made an appearance in only one level in the iOS version of Angry Birds Seasons in the Christmas episodes Season's Greedings and Wreck the Halls. In Summer Pignic, he only appeared in 2 levels.