ok i noticed my parents had 2 muscovy drakes with dropping wings and i pointed it out and all they wanted to say was it was because of the mud that the ducks have made in their pen. i know it is not from the mud. today one of them died. both were/are eating and drinking just fine. the reason i am asking what could be wrong is because i house my ducks in the same area while i am building new pens. everyone gets along never see any fights. poop looks normal and they sound normal so thinking some sort of infection. they get feed corn and pellets never have had a problem like this with ducks before but with so much rain and pens not drying out like they need to i'm guessing there is something growing in the pen and i don't want to lose any of my ducks and am hoping to have the pens done this weekend to get them outta there forgot to mention they are a healthy weight, the one that died was not under weight in any shape form or fashion in fact he was top drake.