Birds
Indian Peafowl
Pavo cristatus · also called peacock, peahen, blue peafowl
The Indian peafowl produces the most famous ornament in the animal kingdom — the peacock’s train, a shimmering fan of eyespotted feathers up to a metre and a half long. It is also a noisy, adaptable, ground-feeding bird that lives comfortably alongside people across South Asia and, as an introduction, on estates and farms around the world.
Overview
Wild Indian peafowl live in open deciduous forest, scrub, and farmland across the Indian subcontinent, usually near water and close to human settlement — many are semi-tame around villages, temples, and fields, and the species is India’s national bird and is protected there. They forage on the ground by day and roost high in trees at night for safety. They are best known by voice long before sight: a loud, far-carrying “may-awe” call, especially before rain.
The train
The male’s “tail” is really a cape of up to 200 elongated feathers growing from the lower back, each ending in an iridescent eyespot. During courtship he raises them into a great fan, braced from behind by his short, stiff true tail feathers, and then vibrates the whole structure about 25 times a second. The shaking makes the eyespots seem to float steadily while the surrounding barbs shimmer, and it produces infrasound the peahen can sense at close range. Peahens assess males on eyespot number, colour, symmetry, and display effort.
The colours are largely structural — produced by light-scattering nanostructures in the feathers — which is why the same feather shifts from blue to green to bronze as the angle changes.
Diet and behaviour
Peafowl are omnivores, taking seeds, grains, berries, buds, insects, and small vertebrates including lizards and young snakes — they are locally valued as snake-killers. They live in loose groups: a dominant male may hold a display territory (“lek”) attended by several females, or small parties of hens and young roam together.
Reproduction
After mating, the peahen makes a shallow scrape on the ground, hidden in vegetation, and lays three to six eggs. She incubates and raises the chicks alone; the male takes no part. Chicks can run and feed within a day and fly up to a low roost within about a week.
Status
The Indian peafowl is Least Concern and common, both wild and as a widespread ornamental and feral bird. In its native range it benefits from cultural and legal protection, though it faces localised threats from poaching for meat and feathers, poisoning (deliberate and via treated crops), and feral dogs. Introduced populations are sometimes considered a noisy nuisance but are not ecologically damaging in the way many bird introductions are.
Indian Peafowl: common questions
What is the difference between a peacock, a peahen, and peafowl?
The species name is "peafowl"; a male is a "peacock" and a female is a "peahen." Only the male has the iridescent blue-green neck and the huge train; the peahen is mottled brown with a white belly and a short train, camouflaged for incubating on the ground. The word "peacock" is often used loosely for both sexes, but strictly it means the male.
Is the peacock's train its tail?
No. The long, eyespotted feathers are elongated upper tail coverts — feathers that grow from the lower back and normally just cover the base of the tail. There are up to about 200 of them, and when the male displays he raises them into a fan supported from behind by the 20 much shorter, stiff true tail feathers. The train is moulted and regrown each year, reaching full length only when the bird is four or five years old.
Why does the peacock shake its train?
The fanned train is not held still — the male rattles and shivers it, vibrating the feathers around 25 times a second. This makes the iridescent eyespots appear to shimmer and hover while the background feathers blur, drawing the peahen's gaze to the "eyes," and it also generates low-frequency infrasound that the peahen can detect from metres away. Peahens pay attention to the number, symmetry, and colour of the eyespots and to the vigour of the shaking when choosing a mate.
Did the peacock really bother Charles Darwin?
Darwin wrote in 1860 that "the sight of a feather in a peacock's tail, whenever I gaze at it, makes me sick," because natural selection alone could not explain a structure that seemed to hinder survival. Working through the problem led him to develop the theory of sexual selection — that traits can spread because they improve mating success even at a survival cost — which he laid out in 1871. The peacock's train remains one of the classic examples.