My girls are turning 1 and I'm thinking of a special treat. So far they have never had crickets, but my sense is they will LOVE them! The package I'm thinking of getting is about 500 of them. My husband is suggesting we feed them a portion, and use the others to breed our own crickets. I know they would potentially have an unlimited supply if they're free ranging. But in the run, how many could I safely feed them/day?