Who would have thought tuna?!!! I'm going to try it next - paid $4.00 for a tiny container of mealworms at the pet supply - a few of my 2 wk old chicks went nuts over them, but they've eaten most of them. I'm working on socializing them - thanks to all the suggestions from others on the Forum - so we'll do tuna next. And I got a real chuckle out of someone describing "chicken rugby" when the treats are handed out - too funny - and true! My babies went crazy over the worms.