Adult Little Blue Herons actively teach their young how to fly, encouraging them to take off by demonstrating and often tempting them to the end of branches with food. This adult and the juvenile on the right had their legs intertwined so I thought for sure the juvenile would launch.
The juvenile of this trio on the left had at least a short hop down as he arrived from a nearby tree after I started taking these images. The adult took off.
None of the three juveniles followed the parent.
After a little squabble the three settled down to wait for the adult to return for another try.