Yeah, some of the wings are so small. But that doesn't stop them from flapping them.
The smallest birds do seem to be growing. However, they are by no means catching up with the biggest girls. They still get rolled when the ducklings panic & run into a corner. But, MAN! can those little ones run!!!
DH has been putting them back in their pen at night, and it seems that one or two has not cooperated. Tonight he was thrilled, because they all immediately put themselves away when he went out to feed them.