A 15-year-old mutant
A tomboy. You could pretty much look at maximum ride and say, oh, they have very similar personalities.
Steampunk goggles; cargo pants; combat boots; green army jacket
The scientists at the school tried to re-create the avian-human hybrid, as they had done with the flock. This time, though, she was allowed to grow up among her own family. Though she had to keep going back for tests, to see how the experiment was going. She ran away at thirteen, to escape the constant experimentation. She is still on the run from her past. Though she is a replication hybrid of the flock, she hasn't and will not aquire any new talents/powers.