Birdborg is a minor (fictional) villain in the 2014 movie Birdman or (The Unexpected Virtue of Ignorance). Despite having been featured prominently in the trailers, it only makes a brief appearance in one scene of the film.
The Birdborg looks like a giant bird-like robot.
The Birdborg only briefly appears in Riggan Thompson's imagination. When Riggan is walking in the streets, he imagines Birdman trying to convince him to make another Birdman movie. As he speaks, the Birdborg suddenly appears on the top of a building. It is attacked by militaries, but it faces them and roars loudly. Then, Birdman manages to persuade Riggan to make a screech.