Anima Vol 9

Anima Vol 9 by Mukai, Natsumi. A Fantasy manga rated Teen, published in English by Tokyopop in 2007.

In a world where some people are born with animal-like powers called Anima, Cooro, a cheerful boy with black crow wings, sets out to find a place where Anima can live freely. Along the way he gathers a band of fellow outcasts, each with a power and a past.