I thought I had lost my australian spotted drake night before last. When I went to lock them in for the night he was nowhere to be found, of course it was dark by the time I missed him so I was tromping around with a flashlight. When I went to let them out I noticed an extra duck in with my muscovies. I had to catch him and put him out to reunite with his woman, who was very glad to see him. A couple of weeks ago the same thing happened with one of my pekins. Before this they have never changed pens, I keep them separate at night to make sure no one gets bullied away from the food and shelter at night. I don't know if this was just a random thing or if they were being bullied so moved.
it happens if you have multiple coops. We have had some chickens move in with our ducks because of duck friendship compared to chicken complains on tenant occupation. Of course this is natural. In nature it happens all the time. one doesn't find happiness with ones self same, they move on to stranger tides to find their land of Goshen, so to speak.
Glad you found him! hard to say what gets into their heads sometimes. Has he been eying up larger fowl? i know my call drake is a bold little guy but he has 3 ducks so is more than busy
