Our prolapsed duck story: I am sure I forgot a few things but wanted to post my experience with the hope that it might help someone get through what was very distressing for me. She was exactly 1 year old when this started and has been a great egg layer until now. My belief is that while I was on a 3 week vacation the caretaker was not diligent about giving the girls their crushed oyster shells.
During the process I held her and loved on her throughout. She was an excellent patient.
My favorite duck (Quackers) had a prolapse. It looked really bad to me. I had no idea what it was or what to do with her. I went to BYC and read all of the great advice on this site about prolapsed ducks. (Spoiler: She is doing lots better after a long month and I am much better informed than I was when the saga started).
As a complete novice on the topic I started by giving her a warm bath. To my joy she layed a shell less egg in about 10 minutes and the prolapse went back in on its own. That made me happy and I hoped it was over. As a novice I found that the process was only beginning. I put her in a dark shed and gave her plenty of water with Calcium Citrate/D3 dissolved in one of her water containers (she did prefer this water). I give her food twice a day and take it away when she stops eating.
Two days later she layed two eggs in one night. One normal and one semi hard shell and her prolapse returned MUCH worse (like the pictures I have seen here). She was distressed, wouldn't walk, wouldn't sit down and not pooping but was dripping fluid like I had read from BYC site. She had a chunk of poop stuck in her digestive tract outside of her body. It was very dry and hard, about the size of a golf ball. I could see an opening in her tract about the size of a dime. I thought I'd try to help her pass that chunk. I used a small dropper and gave her a small quantity of diluted witch hazel and the poop was slowly disintegrating and dropping out. In an hour she had pushed another chunk to the opening and I'd try witch hazel again. After a few hours all of the really hard stuff was out and she was able to poop softer poop but not like normal duck poop yet.
This is when I gave her about 6 hours of rest and checked again. She was much better, sort of pooping and seemed less stressed. I started the process of reinserting the prolapse. I sprayed the area with sugar dissolved in water, waited ~15 minutes and applied antibiotic. I carefully pushed everything back in and held it there for about 15 minutes. She was a good patient. She seemed happy to get everything back in. This only seemed to work for a few hours and a minor prolapse would happen again. I did this 2 more times after letting her rest a couple of hours until she was able to hold it in. It has not re-prolapsed in 7 days and she is loving life again. I let her forage about an hour a day but keep her in the dark shed 23 hours a day. She seems to be back to self again. Like I hoped she has not laid another egg.
I was planning to wait one month from the time she kept the prolapse in and started acting normal before I put her back in with her 7 sisters. She does miss them.
Thank you all for the advice on this forum. Any advice on my process is appreciated also.
Dave