David Attenborough at his best describing the nest of the Bower bird which it uses to attract the female. Th Bower bird is nondescript to look at, unlike the peacock which has gone to the other extreme, being brilliantly decorated and putting on an impressive display.Mallard are less exhihibitionist, though both the male and the female have patches of brilliant colour. The flashes under the wings are only visible when the wings are used, acting as a sign.
The brilliant colors are very similar in mallard and peacock. If you look at the facade of the Café du Levant there are the same bright attractive colours. What about the use of colour in the Sistene Chapel?