So my turn for sad news. Lost 8 juvenile muscovy (including the ones I planned on keeping!) when something broke into their pen in the middle of the day! There were 17 in the pen, and I found out about the break-in only because I found one of the ducklings peeping under my trailer. Their pen is downhill at the other end of the property and can't be seen from here or the house.
I thought the little one had just found a way out so went to inspect, and found the pen destroyed. Eight had sought the shelter of their coop, but I've yet to find any of the others... No blood or feathers/fluff anywhere.