article_snippet: Peacock tails may be hard to miss, but humans are unaware of the noise created by the bird's pretty plumage.
article_snippet: Scientists have shown that peacocks shake peacocks tails to make a noise that is too low for us to hear.
article_snippet: Scientists have shown that peacocks shake peacocks tails when displaying (stock image) to make a noise that is too low for us to hear.
article_snippet: Researchers at the University of Manitoba in Winnipeg, Canada, have shown that the birds make infrasound noises - below 20 hertz - using the birds tails and that other peacocks respond to the birds.
article_snippet: Dr James Hare noticed a peacock displaying and shaking its tail at a wall in a zoo, which Dr James Hare noted looked like a satellite dish and made Dr James Hare question whether the bird was listening to the bird, BBC Earth reported.
article_snippet: This sparked a study, leading Dr James Hare and graduate student Angela Freeman to record the sound of 46 peacocks shaking their feathers while displaying.
article_snippet: Male and female peacocks became more alert and moved around when the low noises were played back to Male and female peacocks by researchers, with males (stock image) shrieking out .
article_snippet: Male and female peacocks became more alert and moved around when the low noises were played back to Male and female peacocks by researchers, with males shrieking out in response.
article_snippet: Ms Freeman believes that male peacocks may use infrasound to maintain male peacocks territory and warn off approaching rivals.
article_snippet: Ms Freeman observed that male peacocks were most likely to make the low sounds when male peacocks showed off male peacocks train feathers, producing two displays which Ms Freeman called the ‘shiver train’ and the ‘pulse train’.
article_snippet: Ms Freeman believes that male peacocks may use infrasound to maintain male peacocks territory and warn off approaching rivals.
article_snippet: Peacocks’ tails are a sign of strength and good genes, so a strong noise may reinforce a message of virility, Ms Freeman said.
highlights_snippet: Researchers at the University of Manitoba, Canada, have shown that peacocks make infrasound noises - below 20 hertz - using Researchers at the University of Manitoba, Canada tails .
  
highlights_snippet: Male peacocks may use infrasound to maintain Male peacocks territory .
  
highlights_snippet: Male peacocks could also use the noise to attract a mate across scrubby woodland .