Do you want to compare U.S.Agent with Warbird? Discover the powers, weakness & weapons of U.S.Agent and Warbird from U.S.Agent Biography and Warbird Biography. Find out all about U.S.Agent and Warbird.# Check out how is U.S.Agent unique and distinct from Warbird. Discover their love interest, sidekicks, family tree and the movies and games list in which U.S.Agent and Warbird have appeared. Find out everything about them here!