Moby

The Moby is an enemy featured in The Adventure of Link and Zelda's Adventure.

The Adventure of Link
In The Adventure of Link, the Moby is a type of orange bird found in swamps. It drops out of the sky and flies directly towards anyone in range of it. Link must use his sword attack just right so that he can hit it before it flies into him. If Link is hit by the Moby, he loses experience points.

Zelda's Adventure
In Zelda's Adventure, Mobys appear as pink hued birds found in the Forest of Ogbam. Their only means of attack is to fly directly into Princess Zelda, however they're fairly weak and can easily be defeated in a couple of hits.

Animated series
A single Moby appears in the "Cold Spells" episode of the animated series. While Princess Zelda is inspecting Link's messy room, a Moby flies in through the open window and attacks her. Zelda hits it with a nearby jar and the Moby lands near Link's pile of dirty clothes, and when the princess pushes its head further in, it is so disgusted by the smell that it flies away.

The Legend of Zelda comic
Moby also appear in the Legend of Zelda comic, although they play a rather minor role and are only featured in a few panels. They first make an appearance in Missing in Action, where four Moby attack Princess Zelda and Link as they are making their way to the Island Palace. Another Moby is depicted in the first page of To the First Power as Zelda is getting ready to go train in the Underworld.