In many cultures peacock feather is considered auspicious and people give high regard to the the feather due to its beauty ...

Male mandarins have colorful “sails” on each ... The edges of the feather above appear iridescent, like a peacock’s. Feathers: Displays of Brilliant Plumage by Robert Clark, published ...

But bigger is only better up to a point. If peacock trains become too big or too colorful over time, they may no longer confer a selective advantage. Exaggerated trains might attract a new kind of ...