The hawk spent about 10 days recovering at the Milpitas-based Wildlife Center of Silicon Valley after flying around with a nail piercing her skull for several weeks. The hawk was captured on Oct. 21.
The San Francisco Chronicle reports the bird was moved to an outdoor flight aviary last week to prepare for Wednesday's release to the wild.
Monterey-based WildRescue, the group that led the rescue efforts, says the hawk was apparently shot deliberately by someone with a nail gun. WildRescue is offering a $10,000 reward for information leading to the conviction of the person who did it.