The rivalry just got deadly.

A pair of peregrine live on a ledge of one of the skyscrapers in Pittsburgh.

An intruding falcon attacked the nest and was nearly beheaded by the Pittsburgh male.

The dead falcon's leg band identified it as a falcon from Cleveland.

news story
http://news.yahoo.com/s/wtae/2007070...s2R35gAOEE1vAI

pics of the fight
http://www.paconserve.org/rc/peregri...ges/index.html