Just now I found my one year old male Muscovy taking shelter away from his mate which is highly unusual in itself...he is lethargic, his feathers puffed up, slightly labored/weak walking and breathing. Haven't been able to give him a thorough physical exam but don't see any obvious evidence of injury .Haven't looked at his vent so can't say if anything weird is happening there .He eats a variety of foods: chicken crumbles, duck pellets, scratch treats, whatever he free ranges on land or in the pond....here is a pic of his stool. He seemed fine yesterday. Duck plague?????