Red

''Red's a natural leader: strong willed, outspoken, and decisive. Knowledgeable and self-confident, he can intimidate other people who may mistake his confidence for arrogance.''

Personality
Red Bird has a short temper when it comes to egg theft and, like most of the Flock, becomes enraged easily when eggs are discovered missing. His best friend and confidant is Yellow Bird (Chuck). Red was also a perfectionist such as clipping the grass in a field until it was just so for the eggs. Although he is undeniably aggressive, he had enough manners to spare Matilda's feelings after the food she cooked was disgusting.

History
Little is known about Red Bird’s history before the events of the first Angry Birds game. It is known that he went through negative (1999-2002) and rebellious periods (2003-2008) in his youth.

Once the King Pig decided to steal eggs from the Birds on their island, Red has been at the forefront of the war between the Angry Birds and the Bad Piggies. Red Bird, Yellow Bird and one Blue Bird (The Blues) were the first to discover the first eggs missing after severely attacking an insect for landing on their eggs. He is considered the leader of the Flock, though he displays no exceptional powers as the others do.

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 Red Bird. It was only for the actions of Terence, the Big Brother Bird that the Flock was freed.

At an indeterminate time later, the Flock was captured as rare birds and taken to Rio de Janeiro, Brazil where they fought with Blu and Jewel and their friends against Nigel the cockatoo and Mauro and his marmosets.

In addition to Rio, Red has also traveled to China twice and Japan, where he dressed as a ninja.

During the Wreck the Halls adventure, Red Bird and Bomb took the lead in chasing the Pigs through the snow on skis.

In one conflict, the Bad Piggies stole a girl egg. When the flock retrieved her, Red Bird was seen in the company of a female counterpart watching over the eggs. From the picture taken, it would appear that this is his mate and the Boy and Girl eggs are his offspring.

In another adventure, Red and the Flock were whisked into Space via a wormhole, gained special abilites as a result of the wormhole energy, and fought the Space King and the Space Pigs in order to regain their stolen eggs.

The Blues
Red acts as fatherly figure to the Blues. In Slingshot 101, they are scolded by Red when he tells them not to play on the slingshot. Afterwords, he can be seen playing with them as if he tolerates their behavior. He also trusts them to watch the eggs, as seen in the Angry Birds Space comic and "A Piece of Cake". However, they usually do not follow through with the job and he usually has to be the one to save the eggs or scold them.

The Blues don't like his constant nagging, and see him as annoying sometimes.

Chuck
In the movie, Red and Chuck met through Matilda's anger management courses and have been best friends ever since.

Red and Chuck are known to be best friends and care for each other. This can be exampled in the toons episode Chuck Time, where Red falls from a crevice, and Chuck rushes down to save him. In the Christmas Comic, Chuck falls from a cliff and Red ends up saving him.

Red sees Chuck as annoying at first, due to Chuck's strange yoga positions and it is unknown how they became friends. Red, like the others, is annoyed at Chuck's ignorance and clumsiness.

Bomb
In the movie, Red and Bomb met through Matilda's anger management courses and Bomb is now one of Red's best friends.

Red and Bomb seem to be close friends, as in most pictures and media he, Bomb, and Chuck are often seen together. Red seems to be concerned over Bomb, as in Angry Birds Mini-Comics Issue #1, he tries to help Bomb over his hiccups throughout the whole story.

Matilda
Red trusts Matilda enough for her to take care of the Eggs, which she gladly does. However, Red dislikes her cooking but cannot tell her because he doesn't want to hurt her feelings. Matilda has a lot of care for Red, as she is seen making scarves and food for him in the comics.

Matilda was once Red's anger management teacher and mentor as well. He allows her to join his flock even though she has a peaceful nature.

Hal
In the Summer Picnic Animation, Red extremely dislikes Hal at first, not trusting him enough to use the Slingshot. They neglect him, thinking he will only be a burden. Red pushes him away after he messes up Matilda's shot. However, after Hal saves the eggs, Red is extremely grateful and accepts him as a part of the flock. Throughout the Angry Birds Mini-Comics, Red and Hal are shown to be good friends and Hal is cheery and optimistic towards Red.

Terence
Terence seems to be a much older version of Red, as they are the same species. Red is the only one who can understand Terence and cares for his temper, and he tells Terence to "take it easy" in comic #2. From the Toons episode Nighty Night Terence, it is seemingly shown that Red can entrust the Egg's safety with Terence, leaving him and the eggs at the end of a clifftop, which is not very safe.

Due to being the same species it can be assumed that Terence and Red have a brotherly-like connection, or may even be related as a whole, as Trence's name was originally "Big Brother Bird".

Bubbles
Red cares for Bubbles and may possibly be a father figure to him. In the Angry Birds Mini-Comic Issue #2, Red states that he would never hurt Bubbles, after seeing a picture of him popping Bubbles.

Bubbles is the kid of the flock, but Red still allows him to fight with them and does not see him as a burden.

Stella
Stella and Red are presumably good friends, though Red is also somewhat shown to have an intimate crush on her, while Stella returns the feelings for Red through a romantic relationship. He additionally visits her in Angry Birds POP! (Formally Angry Birds Stella Pop) and even stays there (along with Chuck, Bomb, and Matilda). Though in books like "Raiders of the Jade Egg", Stella seems rather annoyed of Red, same with Red to her. Although, in most of the comics, Red and Stella maintain a friendly relationship.

Silver
With Silver being the newest member if the Flock, it is Red's responsibility to show her the ropes of the lifestyles of the Angry Birds and help her adjust to being serious when it comes to pig fighting.

King Pig
It is presumed that Red and king pig have been moral enemies ever since the Birds arrived on Piggy Island, and to this day King Pig frequently attempts to steal the Eggs for his own greedy needs. In the Angry Birds National Geographic book entitled "Animal Showdown", it is solemnly revealed that Red will not stop protecting the Eggs from the Pigs until King Pig is defeated for good, then peace can be restored to the island.

Chef Pig
In the Toons episode Pig Plot Potion, Red is turned into a pig by Chef Pig. By the way they cooperatively work in preparing King Pig's meal, it is possible if pigs didn't steal eggs and birds took care of their anger, they could have positive relationships.

The Eggs
In many different episodes, Red is very overprotective of the eggs and risks his own life over saving them. In Egg's Day Out, Red ventures out to save one single egg, and even smashes a leaf apart afraid that it was a threat to their safety. Red is the caretaker of the eggs most of the time, and was even the one to find them on the shore before the pigs did. He always manages to rescue the Eggs when the pigs capture them, and throughout the entire Egg Defender mode in Red's Mighty Feathers, he protects a singular egg from all the Bad Piggies. He is constantly concerned over them, as shown in Off Duty when he is reluctant to turn over the Eggs' responsibility to Chuck, Bomb, and the Blues.

Mighty Eagle
According to The World of Angry Birds Official Guide, Red dislikes the Mighty Eagle because he stays in his cave most of the time and never joins any fight with the pigs until the very last moment.

Shadow Red
red is very happy to have a omnipotently powerful angry bird in the flock as its trye that red is older than him its shadow red whos tries to be overprotective about red they were like brothers untill shadow red became evil red is completely heartbroken and will not stop fighting him untill he is erased.