Kotaku - The first time you meet him, you know that this is an enemy. Your brain files this big, red-eyed mechanical bird as something to run away from. But as sure as you are that Songbird must be taken down given the chance, your more compassionate, human side might recognize an important distinction. Songbird is a lot more complex than your typical villain.
For what is basically a machine, Songbird carries a lot of emotions in his two-tone eyes. They are either red, meaning that he is on alert and prepared to attack, or a yellow/green, meaning that he is calm. Loving, even.