I must have some wimpy Muscovies.. But I also have an outcast duck who isn't allowed to sleep with the others (don't know why, but the other ducks just don't like her anymore ), so she could use a little extra help from a heater.We also have some Muscovy, as well as 2 pekin, a blue Swedish pair and a Rouen pair. So far the Muscovy have been the least of my concerns. My little Swedish girl has been a bit worrisome. Maybe I will look into some other heat options for them. In case we need it. Better to have it and not need it than need it and not have it right?
Anyway, the two coop heaters I linked above are good options.