The phrase "turkey feathers" refers to the colorful feathers of a turkey bird. It can also be used figuratively to describe something that is showy or flamboyant. Full definition
A piece by Elizabeth Hoy, called «Fowl Game,» is an elegant tableau utilizing her father's cribbage set; a pile of turkey feathers from her parent's yard sits atop the board. (hyperallergic.com)
Julius Defour (left), an achievement gap intervention specialist at John R. Rogers High School in Spokane, looks over a wild turkey feather with Lisa Lucas, a community engagement specialist at Hawthorne Elementary School in Seattle. (priorityschools.org)
And about those feathers... Big Bird, while not a turkey, is covered with white turkey feathers dyed yellow. (bostonmamas.com)