Lethargic Ducks

[Stonewall Farm]

We have a female duck (less than a year old) that has been sick now for at least 5 days and another female duck that is now starting to get sick. The main noticeable symptom is lethargy and just sitting around. I have seen some normal droppings and some that are white and runny. They are both still eating (at least some) and drinking. Also, they have not laid eggs within the last day or so. They have been in a relatively small pen (which, in the past, has sometimes been muddy and wet) with 2 other ducks and 5 chickens.
From observations, I don't think it is worms, a stuck egg, leg problems or respiratory illness (no worms in droppings, no problem walking, no continual wheezing or sneezing).
I have tried giving some Sulmet to the one sick bird for a few days with no apparent results.
Any ideas on what could be the matter? Thank you for any help!

 

[onaharley]

Wish I could help but I am new to ducks as well. Tagging some peeps that could possibly help, @Miss Lydia @Amiga -they really know their stuff when it comes to ducks.

 

[Miss Lydia]

@Stonewall Farm could you please get a pic of their poo we have a member who can tell a lot about health from poo pics @casportpony.

Also what do you feed and do you try and keep the pen dry what are you using on the ground keeping them confined to an area where poop and mud are mixed together can cause illness. Can you do something about their pen?
Are they being picked on by the chickens? chickens are pretty bad about picking on sick or injured others in their flock so might want to make a temp pen and separate the ducks from the chickens till you get them back on their feet.

 

[Stonewall Farm]

Thanks for replying! Here is a picture

We feed them a mixture of layer pellets and scratch grain. The chickens were not picking on the ducks although we did just move them to a clean, grassy area away from the chickens and are giving them Sulmet.

 

[Amiga]

How did this turn out?