You Hi I actually found a wild duck by the road today it looked injured as it couldn't lift it's wings off the ground and was struggling to walk. It was clearly distressed however I approached it carefully, wrapped my Tshirt around it and picked it up to take it to a vet. Once I picked it up it seemed relaxed and comfortable however on the way to the vet it seemed to fade away and it died within 10 minutes. There were no visible wounds and I'm wondering how it may have died? Could I have scared it to death by picking it up?