Wings were a type of decoration associated particularly with Human pilots.
Amelia Earhart, at the time of her abduction, wore a pair of gold wings on her leather jacket, just above her name tag. (VOY: "The 37's")
Ramsey owned a necklace with a pair of platinum wings. This material was the reason he was found by the sensors of the USS Enterprise-D in 2364. (TNG: "Angel One")