*Katar Hol's Appearance in Kingdom Come signals his full merger with his mystical hawk nature (in fact, artist Alex Ross originally conceived of him as Hawkgod) and writer Mark Waid searched for an occupation that mirrored this extreme evolution.
Logically, he would become more predatory -- but how to portray this in a hero? Having the winged Thanagarian prey only on those who despoiled Earth's environment seemed an elegant solution. *Source: Back of card