Mine are so prissy! They love dried mealworms and soldier worms but won’t touch the live ones! They also won’t eat live cicada grubs. When they were younger, I’d catch our numerous grasshoppers and throw them to them, but now they will only eat the little ones. They just stare at it if I catch a big one for them! When I let our chickens out, they go for frogs, small snakes, whatever! But not the guineas. They seem to prefer small things, like grass seed heads and (hopefully) ticks!I train my Guineas very early to come to call with either white millet or dried mealworms. Training them when they are older is not impossible, but it is tough. Try some live mealworm or super worms and if they are down for them then try to switch to dried. Helpful hints, you can buy bulk live mealworms online but the most cost effective way to buy them is find a reptile show near year and buy bulk there. A lot cheaper. Good luck