My little girl Kahlua has developed a 'droopy' wing, i assume bcause her big feathers are coming in rather quickly. is this angel wing? i have never had a duck with angel wing before so i figured id make sure. if it is, i have seen that some people on here tape them up, how long does her wing need to be 'supported' before it will be corrected? i had her taped for a few days and it improved but then began to droop again.