Ducks visit gardens all the time... I was thinking of trying my hand at hatching some phesant eggs next year. "Oh look, Honey! Some wild silver pheasants in our back garden! Aren't they pretty!"
I don't have hens yet, but I will. There is a big white cat that comes and attacks the wild birds we feed in the back garden (this morning is was a wood pigeon, before that a baby pheasant). I WANT IT OUT! I love cats, have always had cats, but my cats have never harmed their 'family' or dared to catch anything in my back garden lol. I'd chase them catch them and put them through the immense embarassment of watching their prey go free while they got a good scolding. I'm sure I seen a mouse wiggle it's tongue at Macavity!
I like the idea of catching it as a stray, but I would't want the neighbours to see me. I'd like to get along with them as it's quite a tight-knit community here and we're the newest on the road.
I looked at buying the ultrasoic boom things, but they've been discontinued, or so I'm told. But wouldn't they activate for pheasants too? I don't want those scaring off! Also I know there are sprays or something, but once again, if they smell of cat pee, I'm worried I'll end up with an empty and desolate garden.
Let me know if you try anything and I'll let you know if I think of anything.