I raise mealworms and crickets for my chickens. Both are easy to raise. But, if you buy crickets from the bait store as a once in a while treat for chickens (or any other pet for that matter), make sure you "gut load" them before feeding them to your pet. "Gut Loading" means feeding them things that are very nutritious for them to pass along to your pet such as oatmeal, vegetable scraps, bread, chick feed, sometimes tropical fish food flakes, apples and potatos for moisture. Crickets straight from the bait store are "empty", they are generally only given a potato once in a while. If you want to see pandemonium...dump a handful of crickets in your chicken run and watch your chickens go wild! Also, when I am trying to tame down a new chicken and teach it to trust me, I hand feed it either mealworms or crickets, it seems to help them get over the fear when they have to take the treat right from your fingers.