+SHRINES
Agitha

Fairies
LinkxNavi

+ARTICLES
Where's Zelda?

+MISC
Random Trivia

+LINKS
Kira Kira

Left-handed Monarch

+FAIRIES
The fairies from The Legend of Zelda series are apart of my list of things that make a true Zelda game. Fairies of any form and type appear in every Zelda game.

Healing Fairies
Healing fairies appear in every Zelda game, to be used as recovery items. They're commonly red 'balls with wings', or humanoid fairies, sometimes with wands. They can be bottled for later use, and - in most 3D games - one can be found in a pot by each boss room door.
Link can open a bottled fairy at any time to heal himself (even if his health s full). If Link takes one hit too many, and dies, any bottled fairy on hand will automatically revive him.
They can also be found in Fairy Fountains, where lots fly around just ready to be bottled, or heal any slight health loss to Link.
Healing fairies appear is certain places in the overworld. Hidden ones can be found, such as in creates, grass and pots. In Ocarina of Time, Navi points out seemingly unrelated spots, but a healing fairy will appear when either the Song of Storms or Sun's Song is played. In Twilight Princess, for every tenth floor completed in the Cave of Ordeals, lots of healing fairies will be released in the Light Spirit Springs, in replacement of Fairy Fountains.
In Spirit Tracks, Link learns the Song of Healing for the Spirit Pipes before entering the Wooded Temple. The healing fairy tells him to play that song whenever he needs healing, but only within dungeons, and only once at that.
The song of Healing in Spirit Tracks is: green, white, green.
In Four Swords Adventures, there are Force Fairies, which can be randomly found in places such as grass and pots, and one is acquired to the play once they clear each stage. They stay within the Four Sword, and revive the four Links when they take one hit too many.

Great Fairies
The Great fairies appear in nearly all Zelda games, taking on the form of a humanoid fairy of Hylian (or larger) height. They reside in Great Fairy Fountains, scattered in hidden places within the overworld of the games they appear in.
Their job is to provide Link with an unlimited source of healing health and magic power completely. In most games, she grants Link with an upgrade. Being an item upgrade, magical power, or magic meter upgrade.
The highest rank of the fairy race is the Fairy Queen, who acts pretty much like the Great Fairies.
Stray fairies
are small fairies that are shattered fragments of a Great Fairy. A certain number of them needs to be collected and returned to their respective fountain to repair the Great Fairy so she can give Link something special and useful.

Companion Fairies
In several games, Link is aided by a constant companion, and the most frequent race to be his companion is the fairy. Being Link's companion, their job is to give hints, tips and a bit of a conversation within game play. The fairies in particular provide Z/L-targeting, (almost) encyclopaedic knowledge of enemies, fly over to things/people to point them out, generate annoyance with their voice clips...
Kokiri's also have their own forest fairy companions whom is their guardian. They work in a similar way to how Navi and Tatl so in game play, though that might just be to illustrate game mechanics to the player.

Link's Companions In Games
These fairies appear in the official games.

Ciela (シエラ, Shiera) is a light blue/white fairy who lives with Oshus on Mercay Island in Phantom Hourglass. Prior to meeting Link she had lost her memory, and sees Oshus as a grandfather figure. Ciela's true colour is yellow, and is the Spirit of Courage - a servant to the Ocean King. Her other half, which is revealed after beating the Temple of Courage, appears to be a very lethargic, silent, and identical fairy. In the manga, he other half is a cute, empty little girl, who hardly spoke. She give Link's sword the sword beam power when a minimum of 10 Courage Gems are found. She's a friendly fairy, and much like Navi.

Leaf (リーフ, Riifu) is a red fairy from Phantom Hourglass. He is the Spirit of Power, and gives Link a flame powered sword when a minimum of 10 Power Gems are found.

Navi (ナビィ, Nabii) is the first fairy companion to come the Zelda franchise's way. The blue forest fairy made her debut in Ocarina of Time, and served her purpose as Link's companion throughout the game, being sent by the Great Deku Tree. Though she's found as an annoyance by some fans, Navi is a sweet and caring girl who thinks the world of Link.

Navi II (or so I like to call her) appears in the Wii version of Twilight Princess, the cursor is in the shape of a blue fairy, looking just like Navi, flapping her wings to make it look like she's involved with what's on screen. Since she's the cursor, she's often called Navi, considering Navi's name is short for 'navigation'. Navi II also appears in Super Smash Bros. Brawl, before Link pulls the Master Sword in Super Space Emissary. She's either there to keep the Wii players of Twilight Princess at home (since Link is left-handed in SSBB), or to pretend that this Link is the Hero of Time.

Neri (ネリ, Neri) is a blue fairy from Phantom Hourglass. She is the Spirit of Wisdom, and powers up Link's defence by half when a minimum of 10 Wisdom Gems are found.

Tael (トレイル, Tateiru) is not a companion to Link, but rather one to Skull Kid in Majora's Mask. He is the younger brother of Tatl. He's weak-willed, and has zero authority over Tatl, but is indeed a good boy, despite being a clueless rascal.

Tatl (チャット, Chatto) is the older sister of Tael. She is a yellow forest fairy who befriended Skull Kid in Majora's Mask. She got stuck with Link, when she was separated from her brother, thus her anxiety made her more forceful and mean. She eventually warms up to Link, but covers her care with her blunt and aggressive nature.

Link's Non-Canon Companions
These fairies appear in the Zelda comics, manga and TV shows.

Epheremelda is a blonde, humanoid fairy, in a blue dress, who appears in the A Link to the Past comic.

'Fairy', an unnamed fairy, befriends Red in Himekawa's manga Four Swords +. The maidens sent her to help the Links. She's as nice, friendly and useful as Ciela is. In Four Swords Adventures, each Shrine Maiden take on a fairy form while she gives advice before the Links set off on the next level.

Felicia (フレシア, Fureshia) is a blonde, humanoid fairy from Cagiva Ataru's manga for Link's Awakening. It's a love/hate relationship between her and Link.

Miff is a blonde, humanoid fairy from the Valiant comics.

Spryte is a blonde/brown, humanoid fairy, in a pink dress, from the American TV show. She is the princess of the fairies, and is close with Link and Zelda.