1) Casts off skin 2) Casts off the skin 3) Changes a coat 4) Drops down 5) Drops feathers 6) Drops off 7) Exuviates 8) Is scaling down 9) Loses a skin 10) Loses feathers 11) Shakes a tail feather 12) Sheds 13) Sheds a coat 14) Sheds a skin 15) Sheds feathers 16) Sheds plumage 17) Sheds skin 18) Sloughs off 1) Sheds