BBC_Earth_UK_-_January_2017

(Nancy Kaufman) #1
Incredible everyday
The feather

They are light and deceptively simple – but also iridescent
and ingenious. Joe Shute dazzles us with pluming
marvellous facts about one of nature’s strongest structures

N


ext to a shelf of recipe books
and tucked behind the
thermostat in a corner of my
kitchen, I keep the feather
of a feral pigeon. It was retrieved a year or so
ago from beneath a most insalubrious railway
arch where the birds roost, and at first glance
is a far-from-obvious keepsake. Indeed,
when I first picked the feather up it was being
blown about the street like some discarded
crisp packet. But look closer and you see one
of the great wonders of the world.
ere are three colours shaded across,
from white to navy grey to charcoal. At
the base of the quill is a wisp of soft down

designed to keep the pigeon warm. e rest
is as sharp and rigid as the teeth of a comb.
e feather is deceptively simple. But
thanks to it, the pigeon, like some 10,000
other species of bird across the world, flies
more gracefully than any invention humans
have devised. It is miraculous and, as an
essentially dead structure, it requires almost
no maintenance or metabolic effort.
Principally, a bird uses feathers to fly,
keep warm, attract a mate, challenge rivals,
hunt and disguise itself from unwanted
attention. e secretive nightjar, for example,
has evolved a plumage that resembles dead
leaves to better blend in.

Who’s a pretty boy? Whether you’re a glider, a flapper or a show-off, feathers serve a variety of purposes,
from keeping you warm to helping you fly. From left: mallard, rainbow lorikeet, macaw, jay and pigeon

WITH A FEATHER

Free download pdf