I also had a duck that I found it got washed up from a storm and I kept him, my son made a cage for him and I introduced him to the dogs and they got along fine I was able to leave the dogs and the duck outside in my fenced in yard while I supervised because I was always aware of hawks waiting to grab him.
I believe any animal will like a new animal if they are introduced slowly, except for my bunny lol
I have a bunny and my three dogs and two cats ignore her. She is in a cage where she is protected anyway I do not let her run loose because she messes everywhere and is very destructive by chewing things like wires. I believe if she is loose and one of the animals came near her she would fight them. I have had many bunnies and most of them were docile this one is not.