[Mr. Monday Morning]

Originally Posted by mitchanthropic No, they were only aliens in the Silver-age run of Hawkman's life in DC, when he was a Thanagarian police officer called Katar-Hol. In current continuity, Hawkman and Hawkgirl are re-incarnations of Egyptian royalty Khufu and Chay-Ara respectively, like they were originally - hence their predicament in the current Rann/Thanagar war. Only Hawkwoman is an actual Thanagarian alien. -edit- Actually, to be fair, Hawkgirl is now Chay-Ara's/Shiera's grandniece, but even then, she's still human.

That'll teach me not to read the entire Wikipedia entry