OMG, scared of worms? That's something never heard of before! When I work in the garden I take a container with me and throw them to the hens and it's like a riot, they devour them! Maybe give them a little cooked spaghetti as a treat and they will get used to the shape. Worms are so good for them, and cuts down on feed cost. Chickens are so funny, aren't they? Who says they are dumb and have no personality? Each one is different with different behaviors, we enjoy the heck out of them, and now watching them trying to mingle with the ducks, is very entertaining. Who will win remains to be seen...