What kind of Bird is Big Bird? Nobody really knows, but everybody still loves this famous bird! The Big Bird Toddler Costume includes a jumpsuit which features a yellow bubble shirt with a printed Big Bird logo on the center, a matching yellow hat with eyes, and attached orange and pink striped pants. Everything your child needs to be their favorite Sesame Street character! 2-piece set. Polyester. Does not include shoes. This is an officially licensed Sesame Street product.