matched with the old of baby duck. make sure that you put same old and type of baby duck in the same cage. don’t make the cage too small because it can increase their stressed.
the top of the cage that used by baby duck should be covering with plastic so the wind of the outside can’t entered. on 3 weeks old, the baby duck can be move in the cage that used with litter. make sure that the litter is always dry and the plastic above the cage can be removed. not only the cage but also the baby duck, make sure that both of them are dry. something wet 