For my science fair class, I want to train my seven-month barred rock, cochin, and sebright hens to recognize shapes. My idea is to put two cups. One of them will have a mealworm under it. This one is labeled square. the other is labeled circle. I will individually introduce each bird to the shapes and hopefully when I am done they will go to the square when commanded. I will track the time it takes for each of them to learn and use that as a base for my display. But are there any other ways to train my hens to do so?