This question is hard, as each group is kept differently.
Call ducks: raised breeder pens, kept in pairs or trios with shelter and pools. Feeders refilled every morning with Mazuri waterfowl feed. Greens given every afternoon or evening.
LF ducks: kept in runs (2.5' tall fence) that are 6'w x 24'l with houses at the end and gates at the other. Each run has pools and feed dishes. All LF ducks are fed each morning, we run three flocks in this set up, so each groups gets to free range every third day in the large duck yard. Those not out get greens given to them.
White Muscovy: kept in an enclosed pen with a shade cloth roof. They have their own individual pool and house and feed pan. Fed each morning and given greens daily. They are not let out to free range currently.
Mandarins & Wood Ducks: kept in flight pens with pools, plants, grass, and logs and branches to climb on. Also hung and ground nest boxes for shelter and nesting. No free ranging permitted to those in these pens.
Geese: kept in groups of two and three free ranging all day in seperate pens/pastures during breeding season. Rotated as a large flock in off season. Fed separately every morning and individual pools in their pens and pastures.
We take all eggs laid except for the African geese, they will be keeping their eggs this year. We run two Brinsea incubators and a Dickey setting duck and goose eggs as well as chicken constantly. All eggs are hatched in the house and the hatchlings moved out 36-48 hours of age to the brooder house where there are individual cages with feeders and water bottles and heat lamps. They are moved outside once feathered and kept in grow out pens.
Thats the short of it.
Hhhmmm.... Looks like you found a flaw in the poll. I can't free-range in the winter for the same reason; I feed my ducks corn... I should've picked Semi-extensive, or changed the conditions of Extensive.I couldn't raise mine extensively because in the winter there isn't much to eat or forage for.