I could use some help developing a teen hero with the codename Hummingbird. What I need help with his her origins, I'm kind of drawing blanks here when it comes to making a backstory and I'm willing to work with anyone kind enough to help.
Here are some details:
Name: Alexandra "Alex" Jacobs
Appearance: 5'4", she's a petite young woman with wavy brown hair and green eyes. Mostly human, apart from the wings that are on her back.
Costume: Blue costume with purple highlights. It has short sleeves, gloves, a skirt with leggings and boots that reach up to her shins.
Powers and Abilities: Her primary superpower are her wings that give her natural flight. She can fly at high speeds through the air. Additionally, she has a supersonic "Hum" that is essentially the equivalent of the Canary Cry and is powerful enough to destroy whatever in its path when unleashed at max. She also has wrist blasters that are used to fire from a distance, which has less risk of collateral damage and unintended casualties compared to the Hum. Overall she's fast, packs a punch, and does her best to avoid getting hit.
I have the appearance and power set down for now, but I could use help explaining her backstory. She's a human with wings, but I don't know where to go from there so any help is appreciated.