Purpose

• Both female and male flamingos perform courtship displays. For American flamingos, this starts with head flagging: stretching the head and neck up, flagging it back and forth, and making loud calls. According to the Smithsonian National Zoological Park, "the purpose of these displays is to bring the entire flock into reproductive synchrony." The eggs will thus be laid mostly at the same time, when conditions are best.
  
  

Types

• Head flagging is only one part of courtship behavior; it can be followed by synchronized dancing and other striking movements. Spectators may also witness wing-salutes or the twist-preen, in which flamingos turn their heads to preen their feathers.
  
  

Fun Fact

• Flamingos have a strong domestic bent. When trying to attract a mating partner they will pretend to build nests to prove that they will make good parents. Once they mate, they form a monogamous bond for at least a few breeding seasons.