Whistling in dense vegetation will attract enemies that can easily be taken out.
During the 18th century and onward, Assassins and Templars would whistle to attract enemies in order to assassinate them.
The Assassins Edward Kenway[1] and Ratonhnhaké:ton and Templars Haytham Kenway[2] and Shay Cormac[3] whistled using their mouths from haystacks, bushes, corners, and other hiding spots. Assassins Jacob and Evie Frye[4] could whistle anywhere using a whistle tool.
