Posted in Business & Finance DYSDC stands for Droll Yankees Sunflower Domed Cage Bird Feeder (trademark of Droll Yankees, Inc.) DYSDC Share Pinterest Tweet Whatsapp Post navigation DYSCODYSF Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.