A Lightning Elemental that is chaotic in the sense of a supercharged bouncy-ball that has a 50/50 chance of frying whatever it touches. She acts far more than she thinks because she'd rather not get overwhelmed by her situation and the effect she tends to have on her surroudings.
Thunderbird has become good friends with Benny and Dovali, and enjoys spending time with them. She now spends a lot of time guarding and playing in the junkyard Benny enjoys to make stuff at.
Think of a big, yellow bird (no, not that one) that is made up of electricty and is shaped vaguely like an ostrich. That's pretty close already! Her face and legs are white, and one big blue claw on each foot is much larger and curved than the other. Her eyes are the same electric hue.