Well, 'ibis a true whale story' is a puzzling expression. On one hand, the ibis is a distinct bird species. And a 'true whale story' would imply a narrative about whales. It might be a title or description of a story that combines elements of the ibis and whales in an unexpected way. For example, perhaps in the story, the ibis witnesses an event related to whales or there is some kind of symbolic connection between the two in the narrative. But again, this is all just guesswork without further information.
It's not a true story. Scarlet Ibis is more of a creative and imaginative piece of writing that uses fictional characters and situations to convey certain themes and messages.
Well, opinions on this vary. From a religious perspective, it's often taken as a true account with deep spiritual significance. But from a strictly historical or scientific viewpoint, there's no concrete evidence to prove its literal truth.