I just had a Mallard duckling hatch on September 10 along with 2 other ducklings that are Pekin ducklings. We will soon have an Mallard egg hatching near September 28. My concern is once the September 28 egg hatches, he will need to start off on starter feed while the other 3 older ducklings will be on starter/grower feed, which of course are 2 different feeds. Do I have to make a whole other coop for the new duckling to be sure that he’s eating the starter feed & not the grower feed? Or it doesn’t matter?