I got some plain yogurt and put it in a tiny dish in the cage for my month old chicks. They just stepped in it and pooped in it. I think one pecked at it later.. but it was most likely just a foot print. Several people on here said they give it to their chickens but I'm curious how. I even poured a bit out on a plate but no luck. HOW??? Also, just wanted to add that I got some pet bird gravel/grit from Walmart and sprinkled it on a plastic plate in their cage and they love it! I should have got it for them earlier.