To be, or not to be?

There are a lot of helpful posts in the archives answering your questions, just use the "search" button at top right of page.

My ducks don't mind hanging out near my chickens during the day, but they don't like living together ... they have very different needs and habitats.

 

I would not house them together. I have khakis and although they do not mind the chickens when they are out free ranging they dont do so well close together. My rooster is also not a big fan of the ducks and will sometimes attack them if they get to close. Also keeping them together means a big mess if you provide inside water for the chickens, the ducks will get into it and get the bedding wet. I have found it easier to just keep them apart.

Edited to add that the poop in the yard shouldnt pose a big threat if its not building up. If they are just getting out in the yard for a few hours a day and are in a run other than that like mine are you wont even notice poop in the yard. At least I havnt!

 

My duks and chickens like to forage together, but I would not and do not house them together at night. My ducks like cold, wet weather and the hens prefer dry, warm environment.

 

you have one duck. I imagine they already hang out together and have some sort of relationship/pecking order established. I cannot give an opinion based on experience, but I can't see it posing any sort of problem. The only difference I've read about is that you most likely will want to keep feed/water out of the coop at night since ducks are extremely messy with their water.