I’ve never known another species to do this. Flight training. Great Blues, and Egrets let the young figure it out on their own. Not Little Blues.
They urge the young to follow them either with small pieces of food or just letting them think it’s food time.
Sometimes they wait for the chicks to gather around and beg, other times the adults walk ahead until the branch ends.
Finally an adult will jump ahead, flying off. At first the young birds watch them leave. However, after a few near misses with getting fed they charge adults and jump off branches right behind them. And a chase begins.
The young are flying and don’t even know it at first.