The term 'Fighting Bird' is a reference to the Cock, which is a four-letter word, and the Gamecock, which is an eight-letter word. The Cock is a domesticated fowl, usually a rooster, that is kept as a pet or for its eggs or meat. The Gamecock is a type of fighting bird, specifically a rooster bred and trained for cockfighting. Cockfighting is an illegal blood sport in which two roosters are placed in a ring and made to fight each other until one is dead or severely injured.