Jersey Devil

The Jersey Devil is a folkloric monster as well as a cryptid that is either seen to be supernatural entity akin to a demon or an unidentified animal or creature - according to local superstition the origins of the Jersey Devil lies in a woman who, upon being pregnant, yelled "let it be the Devil": resulting in her giving birth to a horrible monster that proceeded to run up the chimney and fly into the surrounding forest where it supposedly remains to this day.