028 / / JANUARY 2017
Above left: the peacock’s
eyespots attract mates.
Above right: incredible
hues on each barb of a
jay’s feather. Below:
a male Peruvian
marvellous spatuletail
hummingbirdBelow left: the feathers
of a penguin, which
needs to be streamlined
for underwater
swimming. Below right:
a female duck has dull
brown feathers for
camouflage on the nest