Do all duck breeds lay in winter?

Living just north of the Canada-US border, our chickens here stop laying for a good part of the winter without supplemental light. To some extent this is manageable by having pullets just come into lay and I am also trying to select for shorter-daylight layers by incubating chicks from the earliest spring eggs. But ducks seem another good solution to the winter egg shortage.

Do all duck breeds lay well in winter? I have seen Khaki Campbell, Welsh harlequin and I think Indian runner mentioned as winter layers. What about Muscovies or is it only the mallard types?

Just to add: a week after winter solstice, day length here is a bit less than 8.5 hr.

Do ducks care about day length?

My khakis lay all winter, but day length is less variable here, about 10 hours in winter.

My duck flock has not laid a single egg in December this year.  But I didn't hatch many young ones this season, and I don't supply light.  Mixed breed flock.
Mine generally take a siesta for the winter.