Whether they have any extant function or not, they have lost their former function and in that sense they do fit the definition of vestigiality. Vestigial structures are often called vestigial organs, although many of them are not actually organs.
There are quite a few birds famous for doing ritualized mating dances, so I would only list 5: The Red Capped Manakin, The Black-footed albatross, The Western and Clark's grebe, The Superb bird of Paradise, & The Victoria's riflebird.
So we'll call it a 2.When the Elephants Dance purports to be a tale of civilians living through the Japanese occupation (and American recapture) of the Philippines during World War II, narrated alternatively by a nationalist guerrilla leader, a teenage girl, and her preteen brother.he opening of the novel references and explains the title:Papa explains the war like this: âWhen the elephants dance, the chickens must be careful.â The great beasts, as they circle one another, shaking the trees and trumpeting loudly, are the Amerikanos and the Japanese as they fight.