A few weeks ago, our female died leaving our male duck Daffy all by himself. He is a khaki Campbell. Yesterday we were finally able to acquire ducks to keep Daffy company. 2 are Indian Runners and 1 Cayuga (in our estimation). Other than to quarantine them for a while, anything we need to keep in mind to integrate them? The new ducks all came from the same family so they've been family for a while.