They just can't resist mealworms. We have Blue, Great Tits Tits and Robins all eating out of our hands. We were going through a small fortune buying mealworms especially in the breading season so we decided to try to breed our own, much to our surprise it's a great success and the birds are delighted with never ending suppy. We are also delighted and fully entertained watching them especially in our hands, they really are beautiful so close up.