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