The fathers of two men who were sentenced for capturing and selling endangered falcons turned themselves in on Tuesday for paying bribes to prosecutors, court officials and police officers in hope of getting a retrial for their sons.

Yan Xiaotian, a former college student, was sentenced to 10 1/2 years in prison for catching and selling endangered falcon chicks in Henan province. His friend, Wang Yajun, was sentenced to 10 years.

"I know I face imprisonment, but it's all worth it if my son's case can be reopened, because corruption is involved," Yan Aimin, 46, said on Thursday.