Without having read the novel, it's difficult to say for certain. But perhaps there is a village outcast who becomes the central figure in the story after being the only one able to communicate with the black bird oracle. There could also be a wise elder who guides the protagonist in their journey related to the oracle, and a group of doubters who don't believe in the power of the black bird oracle at first.
I'm not sure specifically as I haven't read it. But generally, it could be about a black bird that has some sort of oracular significance. Maybe it's set in a magical world where the black bird's actions or presence foretells events.
Since I don't know the specific 'Black Bird Graphic Novel', I can't say for sure. But it could have a character named Black Bird as a main character, along with some friends or foes that are part of his or her journey.
Most likely, the last oracle is one of the main characters. There might also be an antagonist, perhaps someone who wants to stop the oracle from achieving their goal. There could be other characters like the oracle's family or friends from the past who play important roles in the story, either through memories or flashbacks. And there could be a character who represents the ordinary people in the world of the novel, who the oracle is trying to protect or influence in some way.
There are many possibilities for the main characters in this story. If it's a story about the black bird's place in an ecosystem, other animals in that ecosystem could be main characters too. For example, if the black bird has a symbiotic relationship with another species, that other species could be considered a main character. Also, if there are humans involved, it could be a family that has a special connection to the black bird, and all the family members could be main characters in different ways.
Since we don't know the exact story, the main character is likely the black bird. But there could be other characters like predators that the black bird has to avoid in the game, or friendly animals that it teams up with.
I'm not entirely sure as I haven't read it thoroughly. But usually, in such novels, there is often a protagonist who drives the story forward. There might also be some supporting characters who help or oppose the main character in their journey.
I don't know who the main characters are in this graphic novel as I haven't read it.
In the 'nineteen claws and a black bird stories', the black bird is likely the main focus. But it's also possible that there are other characters that are introduced as the story unfolds. There could be a family of the black bird, where the nineteen claws are a hereditary trait. Or there could be a human character who discovers the black bird and its nineteen claws and becomes part of its story, perhaps trying to study it or help it in some way.
In the 'bird box novel', Malorie is a central character. She is a pregnant woman at the start of the story. As the plot progresses, she becomes a mother who is determined to keep her children safe from the unseen terrors. Tom is another important character. He is helpful and brave, and he teams up with Malorie. There are also other supporting characters that add depth to the story, each with their own personalities and roles in this post - apocalyptic world created in the 'bird box novel'.
Since I don't know which 'bird graphic novel' you're referring to, it could be different birds like a sparrow, an eagle or a parrot as main characters.