I'm not sure specifically what the 'umbarra black duck story' is. It could be a local folktale, a story related to a particular region or community where 'umbarra' might be a place name and the black duck is the central character in the story.
You could start by searching in local libraries in areas where Umbarra might be located. They might have local history books or collections of folktales that include this story.
I'm not sure specifically which 'black duck story' you're referring to. It could be a variety of things. It might be a story about a black duck's adventure in a pond, or perhaps a fable where the black duck represents something special.
A more detailed 'Black duck in white pond story' could be that the black duck was lost and ended up in the white pond. At first, the other ducks were a bit wary of it because it looked different. But over time, the black duck showed its friendly nature and they all became friends. It could also be about how the black duck brought a new perspective to the pond community, like teaching them new ways to find food or avoid predators.
The 'black duck dreamtime story' could potentially revolve around the black duck's role in the ecosystem. It might tell how the black duck interacts with other animals and plants in its habitat. For example, it could be about how the black duck searches for food in the wetlands, and in the process, it spreads seeds or disturbs small organisms that are part of the food chain. Maybe it also has a spiritual significance in the dreamtime lore, representing certain qualities like adaptability or gracefulness.
It could be created by the indigenous people of a particular region. For example, in Australia, the Aboriginal people have a rich tradition of creating dreamtime stories, and it might be one of their creations.
The main character is surely the black duck. However, depending on the story, there could be other supporting characters. For instance, there could be a mother duck that takes care of all the ducks including the black one. There might also be a wise old duck that gives advice to the black duck when it faces problems. And of course, there could be some ducklings that look up to the black duck or play with it. These characters together form the community in the story around the black duck.
I don't know who the author of the 'Black Duck Novel' is. There are so many novels out there, and without more information, it's hard to determine the author.