As a retired law enforcement officer, I would suggest that you should take the issue as high as you can go. Unless you signed a contract or made an agreement that allow people involved in the program to take your fowl, he should at least compensate you for the value of the chicks. SO, I think you should make sure that whomever is running the program that they need be explicitly clear about what is allowed and what is not, which includes stealing show chicken eggs. Also, I would suggest giving this person(actually his father, since he is IS still a minor), an itemized bill for each and every chick.