After a good number of years of keeping chickens, I sneaked out one Sunday a few weeks ago and bought myself a trio of ducks. I bought Khaki Campbells because a) they are the better layers and b) because they will not fly away.
In comparison to keeping chickens, this is my experience so far:-
~ they have their own house with a run attached (this is for when we are not around to free range them); within that they have an underbed storage box with some water in it. It's not huge, but it's adequate for when we are not around and they do not seem to be stressed by it.
~ like chickens, when I first got them, they were confined to their run for the first week.
~ they are taking some time to realise I am the Queen of Food; but, very slowly but surely, they are getting there (still early days - it was faster with chickens)
~ I lock them up each and every night; I have urban foxes visit my garden pond for a drink during the night.
~ ducks are easier to "herd" than chickens.
~ ducks lay their eggs by 7am; today, my chickens have been laying aaaalllll day between them.
~ ducks do not sing an "egg song" when they lay.
~ mine are "domestic" ducks and they do not fly. They can flap their wings and get about 2-3 feet off the ground, but that is it. They do stare in wonderment when the wild mallards visit and when they then genuinely "fly" away. A sort of "how do you *do* that!?" kind of look. But, you are right, they are very "aware" and always on the look out for danger ... if you have plenty of shrubs around your land, they will run for the nearest cover. Not fool-proof or guaranteed protection though.
~ the town I live in was historically marshland; so, when we get heavy rain, we get large areas of the lawn with inches of water sat on top. This happened last week
Duck paradise!!! They have nuzzled their beaks into the waterlogged grass and now I have MUD! But, that's ok, the grass is very forgiving and will grow back.
~ rain or shine their straw bedding must be changed at least once per week. I lay straw on top of wood shavings. To minimise costs, I turn the straw over so I can stretch to changing it every other week.
~ my ornamental garden pond is currently housing fish and the frogs are breeding madly. The delightful "clear" water I had pre-ducks is now a brown soup. This is because my trio adore having a morning and afternoon "bath" and "nuptuals" in my pond. I'm not bothered, I still see my fish and the plants so, that's fine by me. It does mean I will need to bucket out the water in the Autumn and completely refill it with fresh - no filter and the pond was here before we moved in. But I'm fine with that too, because the water will nourish my fruit trees and vegetable beds.
~ the breed of ducks I have are not reknown for setting on their eggs; my plan is, to put their eggs under the next one of my hens which goes broody and then hatch some mini-quackers
~ ducks are less noisey than chickens!!!
Phew! I think that's it? Any more questions I will try and answer, but as I said in the beginning, my experience is limited and recent.