"War Eagle" is a battle cry the originof which has been clouded by history. One account claims that a Confederate vetran found a baby eagle on a battle field and nursed it to health and kept it as a pet. Years later, while attending an AU vs Georgia football game, the eagle broke free from the old soldier and began circling the field. Auburn rallied and the students began to chant, "War Eagle". AU won the game and the eagle died in the endzone at game's end. Another legend claims that at a pep rally, someone found a cadet's eagle insignia on the ground that had fallen from his cap and began shouting "War Eagle". Yet another story is that AU was playing the Indian school, Carlisle, whose quarterback was named Bald Eagle. The Carlisle students would shout his name. The AU students mistook it for War Eagle and adopted the yell.
Auburn people are "Tigers", not "War Eagles" as is sometimes used in the press. To confuse matters even more, is the fact that the university has an eagle on the sidelines as it's mascot. But, to answer your question, we are tigers who roar "War Eagle!!!".