This is the Peacock butterfly in it's very early stages. It all begins with one piece of fabric followed by a tonne of thread layers. I must have used almost 10 different shades of cotton for these wings.
Roosting Peacocks (Aglais io) performing their 'startle display'. They produce the hissing/rattling sound by rubbing their wings together. It's thought that the different components of the display may actually have evolved to deter different predators, with the eyespots repelling birds and the sound deterring mice and other nocturnal rodents. Peacocks also produce ultrasonic clicks as part of this display, and it's possible (though contentious) that these are effective in thwarting attacks by bats. Stumbled across these guys by accident out on a walk a couple of weeks ago and beat a hasty retreat. Fingers crossed they make it through to spring. . #fieldnotes#naturalhistory#animalia#ukbutterflies#butterflyconservation#peacockbutterfly#peacockstartledisplay