I am an avian specialist and I see these ocassionally. Sorry I missed this post until 18 months later, but in case someone else comes across this in the future, I recommend the following:
- Separate the drake from females. Typically this is a problem affecting young, exuberant drakes. If you take away the temptation then their phallus will stay put and get the rest it sorely needs.
- If the tissue is too swollen to replace or is black, green, dead then see an avian vet first.
- If not, gently cleanse the phallus and, if possible without too much misery, lube it up with KY or similar water-soluble jelly and tuck it back inside the cloaca. Sometimes, if the duck is cooperative, you can try applying a hypertonic sugar solution to help shrink the swollen tissue. Most ducks are not this patient.
- If it pops right back out and there is danger of it getting stepped on or beat up, go see an avian vet.
The most important steps the vet can provide that you can't are pain relief, anti-inflammatory drugs, and, in the case of a phallus that keeps popping back out, they can apply a couple of temporary sutures across the vent to hold the phallus in place while it heals. The procedure can be performed in most ducks while awake and using just a local anesthetic-- so not too expensive. Usually this is all that's needed and the sutures can come out in 10-14 days (often they pop out on their own). In very few cases, where the phallus has devitalized or become injured, or fails to heal after the initial vent sutures, then amputation is necessary. Some birds will have long-term complications from this, depending upon how the amputation is performed.
This sounds like great advice, but when you say "not too expensive", what kind of dollar amount are we talking here? I'm curious, because a lot of folks on here keep ducks as farm animals as well as pets, and here it would have cost me, had I chosen to pay for it, almost $200 to get beaks and nails done on three parrots prior to a show, which is a pretty uncomplicated procedure. I chose to spend $50 on a cordless Dremmel and do it myself, which panned out very well. And being as that a prolapsed penis is a fairly common occurrence in ducks, I am wondering what kind of dollar amount this "not too expensive" leads us to...provided, that is, that a duck keeper can find a vet who knows how to work on a duck and on this particular problem.
Having had several prolapses to deal with myself, I have only one to date that is presenting a recurring problem. The others have either resolved themselves or responded to my treatments. Not that I wouldn't have rather had alternate means, but the question remains, at what availability and at what cost?