Okay I need some help. I have 5 ducks (4 domestic,! muscovey that was found) They are one month old today. They stay in a pen 20 by 25 during the day. They have a pool with a ramp in and out 2 dishes and a 30 gallon container for water. They have a coop I put them in at night. The pen has no cover so that is why I put them up at night. The flies and smell is killing me. I am afraid my neighbors will complain and call the police. What do I do to control the smell and reduce the number of flies. I do not want to get rid of my ducks. Also, I am having knee sugerey on July 6th. and need to something before so my granddaughter 12and 1/2 can take care of them for me. Any advice will be greatly appreciated. Anne