Disguise Big Bird Tween Costume - Large This kids Big Bird costume includes a yellow tiered dress with attached belt, striped stirrup leg warmers and a Big Bird headpiece. This girls Big Bird costume comes in kids and tween sizes Large, X-Large. This girls Big Bird costume is an officially licensed Sesame Street costume. Group Halloween costumes ideas: Match this funny Big Bird costume with any of our other Sesame Street costumes for an awesome girls group costumes theme. Please note: This item's color may vary due to inherent manufacturing variations or your computer monitor's color settings. The item you receive will be identical or substantially similar to the item pictured in this listing.