When Big Bird was hatched on Nestus in 69 BBY, he found himself alone as his siblings were eaten by hunters, the sight of which left him mentally ill for many years to come. Big Bird flew to an unknown asteroid where he lived until 55 BBY. There, his mental illness got the better of him. Believing himself to be the almighty lord C-3PO of Endor, he developed his own religion. At first, it was named the "The Big Bird Communism," but after dealing with eighteen wars against himself, he decided to change it to the much more appropriate "Brotherhood of the Bird."