Dang, I thought we were talking chickens! I know nothing about quail! 

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Quail are gamebirds. They aren't really bred to be pets, and they change over time. I have a female who decided yesterday that she wanted to attack her male, after 8 months of happy times. It happens.
Does your quail have a flock? They do best with other birds.
Sorry that it is upsetting to you. I'd look for ways to make her happy that don't include you handling her if she is not okay with it. Get her friends, make her cage a paradise, watch her having fun.