Vintage hand drawn painting of native Australian bird with blue plumage. Symbol of National Parks in Sydney, Melbourne Superb Fairy Wren. Watercolor illustration element isolated on white background.

Perhaps most remarkably, in some bird species like the superb fairy-wren, unrelated females may help raise another ... Bald eagles perched and nesting on tree branches under a clear blue sky. Image by ...

That's according to a study published today in Royal Society Open Science, which claims the complexity of a superb fairy-wren's (Malurus cyaneus) "chatter" song reveals its personality.