The Japanese artist Katsushika Hokusai was said to have created his painting Maple Leaves on a River using an unconventional method. What was he said to have used to create the artwork?

The unconventional method that Katsushika Hokusai used to create his artwork (painting: Maple Leaves of a River) consisted of painting blue paint on a sheet of paper, followed by dipping the feet of a chicken in red paint and allowing the chicken to run at its pace on the sheet of paper that had been painted with blue paint.